21790470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 35544570

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 78, 118, 130, 177, 195, 295, 354, 390, 590, 767, 885, 947, 1534, 1770, 1894, 2301, 2841, 3835, 4602, 4735, 5682, 7670, 9470, 11505, 12311, 14205, 23010, 24622, 28410, 36933, 55873, 61555, 73866, 111746, 123110, 167619, 184665, 279365, 335238, 369330, 558730, 726349, 838095, 1452698, 1676190, 2179047, 3631745, 4358094, 7263490, 10895235, 21790470]

約数ペア:

[(1, 21790470), (2, 10895235), (3, 7263490), (5, 4358094), (6, 3631745), (10, 2179047), (13, 1676190), (15, 1452698), (26, 838095), (30, 726349), (39, 558730), (59, 369330), (65, 335238), (78, 279365), (118, 184665), (130, 167619), (177, 123110), (195, 111746), (295, 73866), (354, 61555), (390, 55873), (590, 36933), (767, 28410), (885, 24622), (947, 23010), (1534, 14205), (1770, 12311), (1894, 11505), (2301, 9470), (2841, 7670), (3835, 5682), (4602, 4735)]