17881788

素因数分解:

$2^2\times 3^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 42890400

約数和(自身を除く): 25008612

約数列:

[1, 2, 3, 4, 6, 12, 73, 137, 146, 149, 219, 274, 292, 298, 411, 438, 447, 548, 596, 822, 876, 894, 1644, 1788, 10001, 10877, 20002, 20413, 21754, 30003, 32631, 40004, 40826, 43508, 60006, 61239, 65262, 81652, 120012, 122478, 130524, 244956, 1490149, 2980298, 4470447, 5960596, 8940894, 17881788]

約数ペア:

[(1, 17881788), (2, 8940894), (3, 5960596), (4, 4470447), (6, 2980298), (12, 1490149), (73, 244956), (137, 130524), (146, 122478), (149, 120012), (219, 81652), (274, 65262), (292, 61239), (298, 60006), (411, 43508), (438, 40826), (447, 40004), (548, 32631), (596, 30003), (822, 21754), (876, 20413), (894, 20002), (1644, 10877), (1788, 10001)]