21029526

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:346

約数の個数: 72

約数和(自身を含む): 53725464

約数和(自身を除く): 32695938

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 113, 126, 147, 211, 226, 294, 339, 422, 441, 633, 678, 791, 882, 1017, 1266, 1477, 1582, 1899, 2034, 2373, 2954, 3798, 4431, 4746, 5537, 7119, 8862, 10339, 11074, 13293, 14238, 16611, 20678, 23843, 26586, 31017, 33222, 47686, 49833, 62034, 71529, 93051, 99666, 143058, 166901, 186102, 214587, 333802, 429174, 500703, 1001406, 1168307, 1502109, 2336614, 3004218, 3504921, 7009842, 10514763, 21029526]

約数ペア:

[(1, 21029526), (2, 10514763), (3, 7009842), (6, 3504921), (7, 3004218), (9, 2336614), (14, 1502109), (18, 1168307), (21, 1001406), (42, 500703), (49, 429174), (63, 333802), (98, 214587), (113, 186102), (126, 166901), (147, 143058), (211, 99666), (226, 93051), (294, 71529), (339, 62034), (422, 49833), (441, 47686), (633, 33222), (678, 31017), (791, 26586), (882, 23843), (1017, 20678), (1266, 16611), (1477, 14238), (1582, 13293), (1899, 11074), (2034, 10339), (2373, 8862), (2954, 7119), (3798, 5537), (4431, 4746)]