21531528

素因数分解:

$2^3\times 3^3\times {\mathrm{83}}^1\times {\mathrm{1201}}^1$

素因数の和:1299

約数の個数: 64

約数和(自身を含む): 60580800

約数和(自身を除く): 39049272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 83, 108, 166, 216, 249, 332, 498, 664, 747, 996, 1201, 1494, 1992, 2241, 2402, 2988, 3603, 4482, 4804, 5976, 7206, 8964, 9608, 10809, 14412, 17928, 21618, 28824, 32427, 43236, 64854, 86472, 99683, 129708, 199366, 259416, 299049, 398732, 598098, 797464, 897147, 1196196, 1794294, 2392392, 2691441, 3588588, 5382882, 7177176, 10765764, 21531528]

約数ペア:

[(1, 21531528), (2, 10765764), (3, 7177176), (4, 5382882), (6, 3588588), (8, 2691441), (9, 2392392), (12, 1794294), (18, 1196196), (24, 897147), (27, 797464), (36, 598098), (54, 398732), (72, 299049), (83, 259416), (108, 199366), (166, 129708), (216, 99683), (249, 86472), (332, 64854), (498, 43236), (664, 32427), (747, 28824), (996, 21618), (1201, 17928), (1494, 14412), (1992, 10809), (2241, 9608), (2402, 8964), (2988, 7206), (3603, 5976), (4482, 4804)]