20864984

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:169

約数の個数: 96

約数和(自身を含む): 50232960

約数和(自身を除く): 29367976

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 49, 56, 62, 68, 98, 101, 119, 124, 136, 196, 202, 217, 238, 248, 392, 404, 434, 476, 527, 707, 808, 833, 868, 952, 1054, 1414, 1519, 1666, 1717, 1736, 2108, 2828, 3038, 3131, 3332, 3434, 3689, 4216, 4949, 5656, 6076, 6262, 6664, 6868, 7378, 9898, 12019, 12152, 12524, 13736, 14756, 19796, 21917, 24038, 25048, 25823, 29512, 39592, 43834, 48076, 51646, 53227, 84133, 87668, 96152, 103292, 106454, 153419, 168266, 175336, 206584, 212908, 306838, 336532, 372589, 425816, 613676, 673064, 745178, 1227352, 1490356, 2608123, 2980712, 5216246, 10432492, 20864984]

約数ペア:

[(1, 20864984), (2, 10432492), (4, 5216246), (7, 2980712), (8, 2608123), (14, 1490356), (17, 1227352), (28, 745178), (31, 673064), (34, 613676), (49, 425816), (56, 372589), (62, 336532), (68, 306838), (98, 212908), (101, 206584), (119, 175336), (124, 168266), (136, 153419), (196, 106454), (202, 103292), (217, 96152), (238, 87668), (248, 84133), (392, 53227), (404, 51646), (434, 48076), (476, 43834), (527, 39592), (707, 29512), (808, 25823), (833, 25048), (868, 24038), (952, 21917), (1054, 19796), (1414, 14756), (1519, 13736), (1666, 12524), (1717, 12152), (1736, 12019), (2108, 9898), (2828, 7378), (3038, 6868), (3131, 6664), (3332, 6262), (3434, 6076), (3689, 5656), (4216, 4949)]