253421567

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1747}}^1$

素因数の和:1847

約数の個数: 32

約数和(自身を含む): 326218752

約数和(自身を除く): 72797185

約数列:

[1, 7, 17, 23, 53, 119, 161, 371, 391, 901, 1219, 1747, 2737, 6307, 8533, 12229, 20723, 29699, 40181, 92591, 145061, 207893, 281267, 648137, 683077, 1574047, 2129593, 4781539, 11018329, 14907151, 36203081, 253421567]

約数ペア:

[(1, 253421567), (7, 36203081), (17, 14907151), (23, 11018329), (53, 4781539), (119, 2129593), (161, 1574047), (371, 683077), (391, 648137), (901, 281267), (1219, 207893), (1747, 145061), (2737, 92591), (6307, 40181), (8533, 29699), (12229, 20723)]