20864922

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8629}}^1$

素因数の和:8678

約数の個数: 32

約数和(自身を含む): 46394880

約数和(自身を除く): 25529958

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8629, 17258, 25887, 51774, 112177, 224354, 267499, 336531, 534998, 673062, 802497, 1604994, 3477487, 6954974, 10432461, 20864922]

約数ペア:

[(1, 20864922), (2, 10432461), (3, 6954974), (6, 3477487), (13, 1604994), (26, 802497), (31, 673062), (39, 534998), (62, 336531), (78, 267499), (93, 224354), (186, 112177), (403, 51774), (806, 25887), (1209, 17258), (2418, 8629)]