21241170

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{521}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 57127680

約数和(自身を除く): 35886510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 151, 270, 302, 453, 521, 755, 906, 1042, 1359, 1510, 1563, 2265, 2605, 2718, 3126, 4077, 4530, 4689, 5210, 6795, 7815, 8154, 9378, 13590, 14067, 15630, 20385, 23445, 28134, 40770, 46890, 70335, 78671, 140670, 157342, 236013, 393355, 472026, 708039, 786710, 1180065, 1416078, 2124117, 2360130, 3540195, 4248234, 7080390, 10620585, 21241170]

約数ペア:

[(1, 21241170), (2, 10620585), (3, 7080390), (5, 4248234), (6, 3540195), (9, 2360130), (10, 2124117), (15, 1416078), (18, 1180065), (27, 786710), (30, 708039), (45, 472026), (54, 393355), (90, 236013), (135, 157342), (151, 140670), (270, 78671), (302, 70335), (453, 46890), (521, 40770), (755, 28134), (906, 23445), (1042, 20385), (1359, 15630), (1510, 14067), (1563, 13590), (2265, 9378), (2605, 8154), (2718, 7815), (3126, 6795), (4077, 5210), (4530, 4689)]