21791796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{857}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 55159104

約数和(自身を除く): 33367308

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 163, 326, 489, 652, 857, 978, 1714, 1956, 2119, 2571, 3428, 4238, 5142, 6357, 8476, 10284, 11141, 12714, 22282, 25428, 33423, 44564, 66846, 133692, 139691, 279382, 419073, 558764, 838146, 1676292, 1815983, 3631966, 5447949, 7263932, 10895898, 21791796]

約数ペア:

[(1, 21791796), (2, 10895898), (3, 7263932), (4, 5447949), (6, 3631966), (12, 1815983), (13, 1676292), (26, 838146), (39, 558764), (52, 419073), (78, 279382), (156, 139691), (163, 133692), (326, 66846), (489, 44564), (652, 33423), (857, 25428), (978, 22282), (1714, 12714), (1956, 11141), (2119, 10284), (2571, 8476), (3428, 6357), (4238, 5142)]