21354060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3911}}^1$

素因数の和:3943

約数の個数: 96

約数和(自身を含む): 73608192

約数和(自身を除く): 52254132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3911, 5460, 7822, 11733, 15644, 19555, 23466, 27377, 39110, 46932, 50843, 54754, 58665, 78220, 82131, 101686, 109508, 117330, 136885, 152529, 164262, 203372, 234660, 254215, 273770, 305058, 328524, 355901, 410655, 508430, 547540, 610116, 711802, 762645, 821310, 1016860, 1067703, 1423604, 1525290, 1642620, 1779505, 2135406, 3050580, 3559010, 4270812, 5338515, 7118020, 10677030, 21354060]

約数ペア:

[(1, 21354060), (2, 10677030), (3, 7118020), (4, 5338515), (5, 4270812), (6, 3559010), (7, 3050580), (10, 2135406), (12, 1779505), (13, 1642620), (14, 1525290), (15, 1423604), (20, 1067703), (21, 1016860), (26, 821310), (28, 762645), (30, 711802), (35, 610116), (39, 547540), (42, 508430), (52, 410655), (60, 355901), (65, 328524), (70, 305058), (78, 273770), (84, 254215), (91, 234660), (105, 203372), (130, 164262), (140, 152529), (156, 136885), (182, 117330), (195, 109508), (210, 101686), (260, 82131), (273, 78220), (364, 58665), (390, 54754), (420, 50843), (455, 46932), (546, 39110), (780, 27377), (910, 23466), (1092, 19555), (1365, 15644), (1820, 11733), (2730, 7822), (3911, 5460)]