18530421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 12220299

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 659, 721, 1339, 1977, 2163, 4017, 4613, 8567, 9373, 13839, 25701, 28119, 59969, 67877, 179907, 203631, 475139, 882401, 1425417, 2647203, 6176807, 18530421]

約数ペア:

[(1, 18530421), (3, 6176807), (7, 2647203), (13, 1425417), (21, 882401), (39, 475139), (91, 203631), (103, 179907), (273, 67877), (309, 59969), (659, 28119), (721, 25701), (1339, 13839), (1977, 9373), (2163, 8567), (4017, 4613)]