21730970

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 18413926

約数列:

[1, 2, 5, 10, 71, 127, 142, 241, 254, 355, 482, 635, 710, 1205, 1270, 2410, 9017, 17111, 18034, 30607, 34222, 45085, 61214, 85555, 90170, 153035, 171110, 306070, 2173097, 4346194, 10865485, 21730970]

約数ペア:

[(1, 21730970), (2, 10865485), (5, 4346194), (10, 2173097), (71, 306070), (127, 171110), (142, 153035), (241, 90170), (254, 85555), (355, 61214), (482, 45085), (635, 34222), (710, 30607), (1205, 18034), (1270, 17111), (2410, 9017)]