20715688

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11933}}^1$

素因数の和:11977

約数の個数: 32

約数和(自身を含む): 45826560

約数和(自身を除く): 25110872

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 11933, 23866, 47732, 83531, 95464, 167062, 334124, 369923, 668248, 739846, 1479692, 2589461, 2959384, 5178922, 10357844, 20715688]

約数ペア:

[(1, 20715688), (2, 10357844), (4, 5178922), (7, 2959384), (8, 2589461), (14, 1479692), (28, 739846), (31, 668248), (56, 369923), (62, 334124), (124, 167062), (217, 95464), (248, 83531), (434, 47732), (868, 23866), (1736, 11933)]