28042917

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1049}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 45696000

約数和(自身を除く): 17653083

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 1049, 1273, 1407, 3147, 3819, 7343, 8911, 19931, 22029, 26733, 59793, 70283, 139517, 210849, 418551, 491981, 1335377, 1475943, 4006131, 9347639, 28042917]

約数ペア:

[(1, 28042917), (3, 9347639), (7, 4006131), (19, 1475943), (21, 1335377), (57, 491981), (67, 418551), (133, 210849), (201, 139517), (399, 70283), (469, 59793), (1049, 26733), (1273, 22029), (1407, 19931), (3147, 8911), (3819, 7343)]