221323809

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{2447}}^1$

素因数の和:2589

約数の個数: 32

約数和(自身を含む): 347811840

約数和(自身を除く): 126488031

約数列:

[1, 3, 7, 21, 59, 73, 177, 219, 413, 511, 1239, 1533, 2447, 4307, 7341, 12921, 17129, 30149, 51387, 90447, 144373, 178631, 433119, 535893, 1010611, 1250417, 3031833, 3751251, 10539229, 31617687, 73774603, 221323809]

約数ペア:

[(1, 221323809), (3, 73774603), (7, 31617687), (21, 10539229), (59, 3751251), (73, 3031833), (177, 1250417), (219, 1010611), (413, 535893), (511, 433119), (1239, 178631), (1533, 144373), (2447, 90447), (4307, 51387), (7341, 30149), (12921, 17129)]