20746713

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 31530240

約数和(自身を除く): 10783527

約数列:

[1, 3, 13, 23, 39, 69, 101, 229, 299, 303, 687, 897, 1313, 2323, 2977, 3939, 5267, 6969, 8931, 15801, 23129, 30199, 68471, 69387, 90597, 205413, 300677, 531967, 902031, 1595901, 6915571, 20746713]

約数ペア:

[(1, 20746713), (3, 6915571), (13, 1595901), (23, 902031), (39, 531967), (69, 300677), (101, 205413), (229, 90597), (299, 69387), (303, 68471), (687, 30199), (897, 23129), (1313, 15801), (2323, 8931), (2977, 6969), (3939, 5267)]