21760295

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 28753920

約数和(自身を除く): 6993625

約数列:

[1, 5, 29, 31, 47, 103, 145, 155, 235, 515, 899, 1363, 1457, 2987, 3193, 4495, 4841, 6815, 7285, 14935, 15965, 24205, 42253, 92597, 140389, 150071, 211265, 462985, 701945, 750355, 4352059, 21760295]

約数ペア:

[(1, 21760295), (5, 4352059), (29, 750355), (31, 701945), (47, 462985), (103, 211265), (145, 150071), (155, 140389), (235, 92597), (515, 42253), (899, 24205), (1363, 15965), (1457, 14935), (2987, 7285), (3193, 6815), (4495, 4841)]