71197819

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 95040000

約数和(自身を除く): 23842181

約数列:

[1, 7, 11, 17, 77, 109, 119, 187, 499, 763, 1199, 1309, 1853, 3493, 5489, 8393, 8483, 12971, 20383, 38423, 54391, 59381, 93313, 142681, 380737, 598301, 653191, 924647, 4188107, 6472529, 10171117, 71197819]

約数ペア:

[(1, 71197819), (7, 10171117), (11, 6472529), (17, 4188107), (77, 924647), (109, 653191), (119, 598301), (187, 380737), (499, 142681), (763, 93313), (1199, 59381), (1309, 54391), (1853, 38423), (3493, 20383), (5489, 12971), (8393, 8483)]