21507876

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15319}}^1$

素因数の和:15345

約数の個数: 48

約数和(自身を含む): 60054400

約数和(自身を除く): 38546524

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15319, 30638, 45957, 61276, 91914, 137871, 183828, 199147, 275742, 398294, 413613, 551484, 597441, 796588, 827226, 1194882, 1654452, 1792323, 2389764, 3584646, 5376969, 7169292, 10753938, 21507876]

約数ペア:

[(1, 21507876), (2, 10753938), (3, 7169292), (4, 5376969), (6, 3584646), (9, 2389764), (12, 1792323), (13, 1654452), (18, 1194882), (26, 827226), (27, 796588), (36, 597441), (39, 551484), (52, 413613), (54, 398294), (78, 275742), (108, 199147), (117, 183828), (156, 137871), (234, 91914), (351, 61276), (468, 45957), (702, 30638), (1404, 15319)]