21523770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 39016710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 41, 45, 57, 82, 90, 95, 114, 123, 171, 190, 205, 246, 285, 307, 342, 369, 410, 570, 614, 615, 738, 779, 855, 921, 1230, 1535, 1558, 1710, 1842, 1845, 2337, 2763, 3070, 3690, 3895, 4605, 4674, 5526, 5833, 7011, 7790, 9210, 11666, 11685, 12587, 13815, 14022, 17499, 23370, 25174, 27630, 29165, 34998, 35055, 37761, 52497, 58330, 62935, 70110, 75522, 87495, 104994, 113283, 125870, 174990, 188805, 226566, 239153, 262485, 377610, 478306, 524970, 566415, 717459, 1132830, 1195765, 1434918, 2152377, 2391530, 3587295, 4304754, 7174590, 10761885, 21523770]

約数ペア:

[(1, 21523770), (2, 10761885), (3, 7174590), (5, 4304754), (6, 3587295), (9, 2391530), (10, 2152377), (15, 1434918), (18, 1195765), (19, 1132830), (30, 717459), (38, 566415), (41, 524970), (45, 478306), (57, 377610), (82, 262485), (90, 239153), (95, 226566), (114, 188805), (123, 174990), (171, 125870), (190, 113283), (205, 104994), (246, 87495), (285, 75522), (307, 70110), (342, 62935), (369, 58330), (410, 52497), (570, 37761), (614, 35055), (615, 34998), (738, 29165), (779, 27630), (855, 25174), (921, 23370), (1230, 17499), (1535, 14022), (1558, 13815), (1710, 12587), (1842, 11685), (1845, 11666), (2337, 9210), (2763, 7790), (3070, 7011), (3690, 5833), (3895, 5526), (4605, 4674)]