21025290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{29}}^1$

素因数の和:89

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 40664310

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 29, 30, 33, 39, 55, 58, 65, 66, 78, 87, 110, 130, 143, 145, 165, 169, 174, 195, 286, 290, 319, 330, 338, 377, 390, 429, 435, 507, 638, 715, 754, 845, 858, 870, 957, 1014, 1131, 1430, 1595, 1690, 1859, 1885, 1914, 2145, 2197, 2262, 2535, 3190, 3718, 3770, 4147, 4290, 4394, 4785, 4901, 5070, 5577, 5655, 6591, 8294, 9295, 9570, 9802, 10985, 11154, 11310, 12441, 13182, 14703, 18590, 20735, 21970, 24167, 24505, 24882, 27885, 29406, 32955, 41470, 48334, 49010, 53911, 55770, 62205, 63713, 65910, 72501, 73515, 107822, 120835, 124410, 127426, 145002, 147030, 161733, 191139, 241670, 269555, 318565, 323466, 362505, 382278, 539110, 637130, 700843, 725010, 808665, 955695, 1401686, 1617330, 1911390, 2102529, 3504215, 4205058, 7008430, 10512645, 21025290]

約数ペア:

[(1, 21025290), (2, 10512645), (3, 7008430), (5, 4205058), (6, 3504215), (10, 2102529), (11, 1911390), (13, 1617330), (15, 1401686), (22, 955695), (26, 808665), (29, 725010), (30, 700843), (33, 637130), (39, 539110), (55, 382278), (58, 362505), (65, 323466), (66, 318565), (78, 269555), (87, 241670), (110, 191139), (130, 161733), (143, 147030), (145, 145002), (165, 127426), (169, 124410), (174, 120835), (195, 107822), (286, 73515), (290, 72501), (319, 65910), (330, 63713), (338, 62205), (377, 55770), (390, 53911), (429, 49010), (435, 48334), (507, 41470), (638, 32955), (715, 29406), (754, 27885), (845, 24882), (858, 24505), (870, 24167), (957, 21970), (1014, 20735), (1131, 18590), (1430, 14703), (1595, 13182), (1690, 12441), (1859, 11310), (1885, 11154), (1914, 10985), (2145, 9802), (2197, 9570), (2262, 9295), (2535, 8294), (3190, 6591), (3718, 5655), (3770, 5577), (4147, 5070), (4290, 4901), (4394, 4785)]