221286681

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{653}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 411863040

約数和(自身を除く): 190576359

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 163, 189, 231, 297, 489, 653, 693, 1141, 1467, 1793, 1959, 2079, 3423, 4401, 4571, 5379, 5877, 7183, 10269, 12551, 13713, 16137, 17631, 21549, 30807, 37653, 41139, 48411, 50281, 64647, 106439, 112959, 123417, 150843, 193941, 319317, 338877, 452529, 745073, 957951, 1170829, 1357587, 2235219, 2873853, 3512487, 6705657, 8195803, 10537461, 20116971, 24587409, 31612383, 73762227, 221286681]

約数ペア:

[(1, 221286681), (3, 73762227), (7, 31612383), (9, 24587409), (11, 20116971), (21, 10537461), (27, 8195803), (33, 6705657), (63, 3512487), (77, 2873853), (99, 2235219), (163, 1357587), (189, 1170829), (231, 957951), (297, 745073), (489, 452529), (653, 338877), (693, 319317), (1141, 193941), (1467, 150843), (1793, 123417), (1959, 112959), (2079, 106439), (3423, 64647), (4401, 50281), (4571, 48411), (5379, 41139), (5877, 37653), (7183, 30807), (10269, 21549), (12551, 17631), (13713, 16137)]