21354648

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1609}}^1$

素因数の和:1704

約数の個数: 64

約数和(自身を含む): 61824000

約数和(自身を除く): 40469352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 632, 948, 1106, 1609, 1659, 1896, 2212, 3218, 3318, 4424, 4827, 6436, 6636, 9654, 11263, 12872, 13272, 19308, 22526, 33789, 38616, 45052, 67578, 90104, 127111, 135156, 254222, 270312, 381333, 508444, 762666, 889777, 1016888, 1525332, 1779554, 2669331, 3050664, 3559108, 5338662, 7118216, 10677324, 21354648]

約数ペア:

[(1, 21354648), (2, 10677324), (3, 7118216), (4, 5338662), (6, 3559108), (7, 3050664), (8, 2669331), (12, 1779554), (14, 1525332), (21, 1016888), (24, 889777), (28, 762666), (42, 508444), (56, 381333), (79, 270312), (84, 254222), (158, 135156), (168, 127111), (237, 90104), (316, 67578), (474, 45052), (553, 38616), (632, 33789), (948, 22526), (1106, 19308), (1609, 13272), (1659, 12872), (1896, 11263), (2212, 9654), (3218, 6636), (3318, 6436), (4424, 4827)]