21282570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2657}}^1$

素因数の和:2759

約数の個数: 48

約数和(自身を含む): 55977480

約数和(自身を除く): 34694910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2657, 2670, 4005, 5314, 7971, 8010, 13285, 15942, 23913, 26570, 39855, 47826, 79710, 119565, 236473, 239130, 472946, 709419, 1182365, 1418838, 2128257, 2364730, 3547095, 4256514, 7094190, 10641285, 21282570]

約数ペア:

[(1, 21282570), (2, 10641285), (3, 7094190), (5, 4256514), (6, 3547095), (9, 2364730), (10, 2128257), (15, 1418838), (18, 1182365), (30, 709419), (45, 472946), (89, 239130), (90, 236473), (178, 119565), (267, 79710), (445, 47826), (534, 39855), (801, 26570), (890, 23913), (1335, 15942), (1602, 13285), (2657, 8010), (2670, 7971), (4005, 5314)]