21756072

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{677}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 59230080

約数和(自身を除く): 37474008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 103, 104, 156, 206, 309, 312, 412, 618, 677, 824, 1236, 1339, 1354, 2031, 2472, 2678, 2708, 4017, 4062, 5356, 5416, 8034, 8124, 8801, 10712, 16068, 16248, 17602, 26403, 32136, 35204, 52806, 69731, 70408, 105612, 139462, 209193, 211224, 278924, 418386, 557848, 836772, 906503, 1673544, 1813006, 2719509, 3626012, 5439018, 7252024, 10878036, 21756072]

約数ペア:

[(1, 21756072), (2, 10878036), (3, 7252024), (4, 5439018), (6, 3626012), (8, 2719509), (12, 1813006), (13, 1673544), (24, 906503), (26, 836772), (39, 557848), (52, 418386), (78, 278924), (103, 211224), (104, 209193), (156, 139462), (206, 105612), (309, 70408), (312, 69731), (412, 52806), (618, 35204), (677, 32136), (824, 26403), (1236, 17602), (1339, 16248), (1354, 16068), (2031, 10712), (2472, 8801), (2678, 8124), (2708, 8034), (4017, 5416), (4062, 5356)]