21977279872

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{2269}}^1\times {\mathrm{2441}}^1$

素因数の和:4755

約数の個数: 64

約数和(自身を含む): 45233654400

約数和(自身を除く): 23256374528

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 2269, 2441, 3968, 4538, 4882, 9076, 9764, 18152, 19528, 36304, 39056, 70339, 72608, 75671, 78112, 140678, 145216, 151342, 156224, 281356, 290432, 302684, 312448, 562712, 605368, 1125424, 1210736, 2250848, 2421472, 4501696, 4842944, 5538629, 9003392, 9685888, 11077258, 22154516, 44309032, 88618064, 171697499, 177236128, 343394998, 354472256, 686789996, 708944512, 1373579992, 2747159984, 5494319968, 10988639936, 21977279872]

約数ペア:

[(1, 21977279872), (2, 10988639936), (4, 5494319968), (8, 2747159984), (16, 1373579992), (31, 708944512), (32, 686789996), (62, 354472256), (64, 343394998), (124, 177236128), (128, 171697499), (248, 88618064), (496, 44309032), (992, 22154516), (1984, 11077258), (2269, 9685888), (2441, 9003392), (3968, 5538629), (4538, 4842944), (4882, 4501696), (9076, 2421472), (9764, 2250848), (18152, 1210736), (19528, 1125424), (36304, 605368), (39056, 562712), (70339, 312448), (72608, 302684), (75671, 290432), (78112, 281356), (140678, 156224), (145216, 151342)]