21549440

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3061}}^1$

素因数の和:3091

約数の個数: 64

約数和(自身を含む): 56218320

約数和(自身を除く): 34668880

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, 3061, 3520, 6122, 7040, 12244, 15305, 24488, 30610, 33671, 48976, 61220, 67342, 97952, 122440, 134684, 168355, 195904, 244880, 269368, 336710, 391808, 489760, 538736, 673420, 979520, 1077472, 1346840, 1959040, 2154944, 2693680, 4309888, 5387360, 10774720, 21549440]

約数ペア:

[(1, 21549440), (2, 10774720), (4, 5387360), (5, 4309888), (8, 2693680), (10, 2154944), (11, 1959040), (16, 1346840), (20, 1077472), (22, 979520), (32, 673420), (40, 538736), (44, 489760), (55, 391808), (64, 336710), (80, 269368), (88, 244880), (110, 195904), (128, 168355), (160, 134684), (176, 122440), (220, 97952), (320, 67342), (352, 61220), (440, 48976), (640, 33671), (704, 30610), (880, 24488), (1408, 15305), (1760, 12244), (3061, 7040), (3520, 6122)]