220119921

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{599}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 384384000

約数和(自身を除く): 164264079

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 307, 399, 599, 921, 1197, 1797, 2149, 2763, 4193, 5391, 5833, 6447, 11381, 12579, 17499, 19341, 34143, 37737, 40831, 52497, 79667, 102429, 122493, 183893, 239001, 367479, 551679, 717003, 1287251, 1655037, 3493967, 3861753, 10481901, 11585259, 24457769, 31445703, 73373307, 220119921]

約数ペア:

[(1, 220119921), (3, 73373307), (7, 31445703), (9, 24457769), (19, 11585259), (21, 10481901), (57, 3861753), (63, 3493967), (133, 1655037), (171, 1287251), (307, 717003), (399, 551679), (599, 367479), (921, 239001), (1197, 183893), (1797, 122493), (2149, 102429), (2763, 79667), (4193, 52497), (5391, 40831), (5833, 37737), (6447, 34143), (11381, 19341), (12579, 17499)]