21065304

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 36269736

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 107, 156, 214, 312, 321, 428, 631, 642, 856, 1262, 1284, 1391, 1893, 2524, 2568, 2782, 3786, 4173, 5048, 5564, 7572, 8203, 8346, 11128, 15144, 16406, 16692, 24609, 32812, 33384, 49218, 65624, 67517, 98436, 135034, 196872, 202551, 270068, 405102, 540136, 810204, 877721, 1620408, 1755442, 2633163, 3510884, 5266326, 7021768, 10532652, 21065304]

約数ペア:

[(1, 21065304), (2, 10532652), (3, 7021768), (4, 5266326), (6, 3510884), (8, 2633163), (12, 1755442), (13, 1620408), (24, 877721), (26, 810204), (39, 540136), (52, 405102), (78, 270068), (104, 202551), (107, 196872), (156, 135034), (214, 98436), (312, 67517), (321, 65624), (428, 49218), (631, 33384), (642, 32812), (856, 24609), (1262, 16692), (1284, 16406), (1391, 15144), (1893, 11128), (2524, 8346), (2568, 8203), (2782, 7572), (3786, 5564), (4173, 5048)]