19973499

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3181}}^1$

素因数の和:3227

約数の個数: 32

約数和(自身を含む): 34212864

約数和(自身を除く): 14239365

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 3181, 6279, 9543, 22267, 41353, 66801, 73163, 124059, 219489, 289471, 512141, 868413, 951119, 1536423, 2853357, 6657833, 19973499]

約数ペア:

[(1, 19973499), (3, 6657833), (7, 2853357), (13, 1536423), (21, 951119), (23, 868413), (39, 512141), (69, 289471), (91, 219489), (161, 124059), (273, 73163), (299, 66801), (483, 41353), (897, 22267), (2093, 9543), (3181, 6279)]