21112960

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2999}}^1$

素因数の和:3029

約数の個数: 64

約数和(自身を含む): 55080000

約数和(自身を除く): 33967040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 2999, 3520, 5998, 7040, 11996, 14995, 23992, 29990, 32989, 47984, 59980, 65978, 95968, 119960, 131956, 164945, 191936, 239920, 263912, 329890, 383872, 479840, 527824, 659780, 959680, 1055648, 1319560, 1919360, 2111296, 2639120, 4222592, 5278240, 10556480, 21112960]

約数ペア:

[(1, 21112960), (2, 10556480), (4, 5278240), (5, 4222592), (8, 2639120), (10, 2111296), (11, 1919360), (16, 1319560), (20, 1055648), (22, 959680), (32, 659780), (40, 527824), (44, 479840), (55, 383872), (64, 329890), (80, 263912), (88, 239920), (110, 191936), (128, 164945), (160, 131956), (176, 119960), (220, 95968), (320, 65978), (352, 59980), (440, 47984), (640, 32989), (704, 29990), (880, 23992), (1408, 14995), (1760, 11996), (2999, 7040), (3520, 5998)]