21417480

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2833}}^1$

素因数の和:2860

約数の個数: 128

約数和(自身を含む): 81619200

約数和(自身を除く): 60201720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2833, 3780, 5666, 7560, 8499, 11332, 14165, 16998, 19831, 22664, 25497, 28330, 33996, 39662, 42495, 50994, 56660, 59493, 67992, 76491, 79324, 84990, 99155, 101988, 113320, 118986, 127485, 152982, 158648, 169980, 178479, 198310, 203976, 237972, 254970, 297465, 305964, 339960, 356958, 382455, 396620, 475944, 509940, 535437, 594930, 611928, 713916, 764910, 793240, 892395, 1019880, 1070874, 1189860, 1427832, 1529820, 1784790, 2141748, 2379720, 2677185, 3059640, 3569580, 4283496, 5354370, 7139160, 10708740, 21417480]

約数ペア:

[(1, 21417480), (2, 10708740), (3, 7139160), (4, 5354370), (5, 4283496), (6, 3569580), (7, 3059640), (8, 2677185), (9, 2379720), (10, 2141748), (12, 1784790), (14, 1529820), (15, 1427832), (18, 1189860), (20, 1070874), (21, 1019880), (24, 892395), (27, 793240), (28, 764910), (30, 713916), (35, 611928), (36, 594930), (40, 535437), (42, 509940), (45, 475944), (54, 396620), (56, 382455), (60, 356958), (63, 339960), (70, 305964), (72, 297465), (84, 254970), (90, 237972), (105, 203976), (108, 198310), (120, 178479), (126, 169980), (135, 158648), (140, 152982), (168, 127485), (180, 118986), (189, 113320), (210, 101988), (216, 99155), (252, 84990), (270, 79324), (280, 76491), (315, 67992), (360, 59493), (378, 56660), (420, 50994), (504, 42495), (540, 39662), (630, 33996), (756, 28330), (840, 25497), (945, 22664), (1080, 19831), (1260, 16998), (1512, 14165), (1890, 11332), (2520, 8499), (2833, 7560), (3780, 5666)]