21003430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9679}}^1$

素因数の和:9724

約数の個数: 32

約数和(自身を含む): 44605440

約数和(自身を除く): 23602010

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9679, 19358, 48395, 67753, 96790, 135506, 300049, 338765, 600098, 677530, 1500245, 2100343, 3000490, 4200686, 10501715, 21003430]

約数ペア:

[(1, 21003430), (2, 10501715), (5, 4200686), (7, 3000490), (10, 2100343), (14, 1500245), (31, 677530), (35, 600098), (62, 338765), (70, 300049), (155, 135506), (217, 96790), (310, 67753), (434, 48395), (1085, 19358), (2170, 9679)]