201521390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{92867}}^1$

素因数の和:92912

約数の個数: 32

約数和(自身を含む): 427935744

約数和(自身を除く): 226414354

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 92867, 185734, 464335, 650069, 928670, 1300138, 2878877, 3250345, 5757754, 6500690, 14394385, 20152139, 28788770, 40304278, 100760695, 201521390]

約数ペア:

[(1, 201521390), (2, 100760695), (5, 40304278), (7, 28788770), (10, 20152139), (14, 14394385), (31, 6500690), (35, 5757754), (62, 3250345), (70, 2878877), (155, 1300138), (217, 928670), (310, 650069), (434, 464335), (1085, 185734), (2170, 92867)]