212490621

素因数分解:

$3^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2357}}^1$

素因数の和:2432

約数の個数: 48

約数和(自身を含む): 370790784

約数和(自身を除く): 158300163

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 243, 371, 477, 567, 1113, 1431, 1701, 2357, 3339, 4293, 7071, 10017, 12879, 16499, 21213, 30051, 49497, 63639, 90153, 124921, 148491, 190917, 374763, 445473, 572751, 874447, 1124289, 1336419, 2623341, 3372867, 4009257, 7870023, 10118601, 23610069, 30355803, 70830207, 212490621]

約数ペア:

[(1, 212490621), (3, 70830207), (7, 30355803), (9, 23610069), (21, 10118601), (27, 7870023), (53, 4009257), (63, 3372867), (81, 2623341), (159, 1336419), (189, 1124289), (243, 874447), (371, 572751), (477, 445473), (567, 374763), (1113, 190917), (1431, 148491), (1701, 124921), (2357, 90153), (3339, 63639), (4293, 49497), (7071, 30051), (10017, 21213), (12879, 16499)]