20528068491

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{89101}}^1$

素因数の和:89193

約数の個数: 64

約数和(自身を含む): 36952381440

約数和(自身を除く): 16424312949

約数列:

[1, 3, 7, 9, 21, 23, 27, 53, 63, 69, 159, 161, 189, 207, 371, 477, 483, 621, 1113, 1219, 1431, 1449, 3339, 3657, 4347, 8533, 10017, 10971, 25599, 32913, 76797, 89101, 230391, 267303, 623707, 801909, 1871121, 2049323, 2405727, 4722353, 5613363, 6147969, 14167059, 14345261, 16840089, 18443907, 33056471, 42501177, 43035783, 55331721, 99169413, 108614119, 127503531, 129107349, 297508239, 325842357, 387322047, 760298833, 892524717, 977527071, 2280896499, 2932581213, 6842689497, 20528068491]

約数ペア:

[(1, 20528068491), (3, 6842689497), (7, 2932581213), (9, 2280896499), (21, 977527071), (23, 892524717), (27, 760298833), (53, 387322047), (63, 325842357), (69, 297508239), (159, 129107349), (161, 127503531), (189, 108614119), (207, 99169413), (371, 55331721), (477, 43035783), (483, 42501177), (621, 33056471), (1113, 18443907), (1219, 16840089), (1431, 14345261), (1449, 14167059), (3339, 6147969), (3657, 5613363), (4347, 4722353), (8533, 2405727), (10017, 2049323), (10971, 1871121), (25599, 801909), (32913, 623707), (76797, 267303), (89101, 230391)]