20921168896

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{659059}}^1$

素因数の和:659110

約数の個数: 44

約数和(自身を含む): 43171066240

約数和(自身を除く): 22249897344

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1984, 3968, 7936, 15872, 31744, 659059, 1318118, 2636236, 5272472, 10544944, 20430829, 21089888, 40861658, 42179776, 81723316, 84359552, 163446632, 168719104, 326893264, 337438208, 653786528, 674876416, 1307573056, 2615146112, 5230292224, 10460584448, 20921168896]

約数ペア:

[(1, 20921168896), (2, 10460584448), (4, 5230292224), (8, 2615146112), (16, 1307573056), (31, 674876416), (32, 653786528), (62, 337438208), (64, 326893264), (124, 168719104), (128, 163446632), (248, 84359552), (256, 81723316), (496, 42179776), (512, 40861658), (992, 21089888), (1024, 20430829), (1984, 10544944), (3968, 5272472), (7936, 2636236), (15872, 1318118), (31744, 659059)]