20969624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1237}}^1$

素因数の和:1419

約数の個数: 32

約数和(自身を含む): 42636720

約数和(自身を除く): 21667096

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 163, 326, 652, 1237, 1304, 2119, 2474, 4238, 4948, 8476, 9896, 16081, 16952, 32162, 64324, 128648, 201631, 403262, 806524, 1613048, 2621203, 5242406, 10484812, 20969624]

約数ペア:

[(1, 20969624), (2, 10484812), (4, 5242406), (8, 2621203), (13, 1613048), (26, 806524), (52, 403262), (104, 201631), (163, 128648), (326, 64324), (652, 32162), (1237, 16952), (1304, 16081), (2119, 9896), (2474, 8476), (4238, 4948)]