21118830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 53526528

約数和(自身を除く): 32407698

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 127, 138, 230, 241, 254, 345, 381, 482, 635, 690, 723, 762, 1205, 1270, 1446, 1905, 2410, 2921, 3615, 3810, 5543, 5842, 7230, 8763, 11086, 14605, 16629, 17526, 27715, 29210, 30607, 33258, 43815, 55430, 61214, 83145, 87630, 91821, 153035, 166290, 183642, 306070, 459105, 703961, 918210, 1407922, 2111883, 3519805, 4223766, 7039610, 10559415, 21118830]

約数ペア:

[(1, 21118830), (2, 10559415), (3, 7039610), (5, 4223766), (6, 3519805), (10, 2111883), (15, 1407922), (23, 918210), (30, 703961), (46, 459105), (69, 306070), (115, 183642), (127, 166290), (138, 153035), (230, 91821), (241, 87630), (254, 83145), (345, 61214), (381, 55430), (482, 43815), (635, 33258), (690, 30607), (723, 29210), (762, 27715), (1205, 17526), (1270, 16629), (1446, 14605), (1905, 11086), (2410, 8763), (2921, 7230), (3615, 5842), (3810, 5543)]