20687604

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 36078924

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 151, 196, 233, 294, 302, 453, 466, 588, 604, 699, 906, 932, 1057, 1398, 1631, 1812, 2114, 2796, 3171, 3262, 4228, 4893, 6342, 6524, 7399, 9786, 11417, 12684, 14798, 19572, 22197, 22834, 29596, 34251, 35183, 44394, 45668, 68502, 70366, 88788, 105549, 137004, 140732, 211098, 246281, 422196, 492562, 738843, 985124, 1477686, 1723967, 2955372, 3447934, 5171901, 6895868, 10343802, 20687604]

約数ペア:

[(1, 20687604), (2, 10343802), (3, 6895868), (4, 5171901), (6, 3447934), (7, 2955372), (12, 1723967), (14, 1477686), (21, 985124), (28, 738843), (42, 492562), (49, 422196), (84, 246281), (98, 211098), (147, 140732), (151, 137004), (196, 105549), (233, 88788), (294, 70366), (302, 68502), (453, 45668), (466, 44394), (588, 35183), (604, 34251), (699, 29596), (906, 22834), (932, 22197), (1057, 19572), (1398, 14798), (1631, 12684), (1812, 11417), (2114, 9786), (2796, 7399), (3171, 6524), (3262, 6342), (4228, 4893)]