21419640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{601}}^1$

素因数の和:635

約数の個数: 160

約数和(自身を含む): 78669360

約数和(自身を除く): 57249720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 594, 601, 648, 660, 792, 810, 891, 990, 1080, 1188, 1202, 1320, 1485, 1620, 1782, 1803, 1980, 2376, 2404, 2970, 3005, 3240, 3564, 3606, 3960, 4455, 4808, 5409, 5940, 6010, 6611, 7128, 7212, 8910, 9015, 10818, 11880, 12020, 13222, 14424, 16227, 17820, 18030, 19833, 21636, 24040, 26444, 27045, 32454, 33055, 35640, 36060, 39666, 43272, 48681, 52888, 54090, 59499, 64908, 66110, 72120, 79332, 81135, 97362, 99165, 108180, 118998, 129816, 132220, 158664, 162270, 178497, 194724, 198330, 216360, 237996, 243405, 264440, 297495, 324540, 356994, 389448, 396660, 475992, 486810, 535491, 594990, 649080, 713988, 793320, 892485, 973620, 1070982, 1189980, 1427976, 1784970, 1947240, 2141964, 2379960, 2677455, 3569940, 4283928, 5354910, 7139880, 10709820, 21419640]

約数ペア:

[(1, 21419640), (2, 10709820), (3, 7139880), (4, 5354910), (5, 4283928), (6, 3569940), (8, 2677455), (9, 2379960), (10, 2141964), (11, 1947240), (12, 1784970), (15, 1427976), (18, 1189980), (20, 1070982), (22, 973620), (24, 892485), (27, 793320), (30, 713988), (33, 649080), (36, 594990), (40, 535491), (44, 486810), (45, 475992), (54, 396660), (55, 389448), (60, 356994), (66, 324540), (72, 297495), (81, 264440), (88, 243405), (90, 237996), (99, 216360), (108, 198330), (110, 194724), (120, 178497), (132, 162270), (135, 158664), (162, 132220), (165, 129816), (180, 118998), (198, 108180), (216, 99165), (220, 97362), (264, 81135), (270, 79332), (297, 72120), (324, 66110), (330, 64908), (360, 59499), (396, 54090), (405, 52888), (440, 48681), (495, 43272), (540, 39666), (594, 36060), (601, 35640), (648, 33055), (660, 32454), (792, 27045), (810, 26444), (891, 24040), (990, 21636), (1080, 19833), (1188, 18030), (1202, 17820), (1320, 16227), (1485, 14424), (1620, 13222), (1782, 12020), (1803, 11880), (1980, 10818), (2376, 9015), (2404, 8910), (2970, 7212), (3005, 7128), (3240, 6611), (3564, 6010), (3606, 5940), (3960, 5409), (4455, 4808)]