21119910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{617}}^1$

素因数の和:797

約数の個数: 64

約数和(自身を含む): 58378752

約数和(自身を除く): 37258842

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 163, 210, 326, 489, 617, 815, 978, 1141, 1234, 1630, 1851, 2282, 2445, 3085, 3423, 3702, 4319, 4890, 5705, 6170, 6846, 8638, 9255, 11410, 12957, 17115, 18510, 21595, 25914, 34230, 43190, 64785, 100571, 129570, 201142, 301713, 502855, 603426, 703997, 1005710, 1407994, 1508565, 2111991, 3017130, 3519985, 4223982, 7039970, 10559955, 21119910]

約数ペア:

[(1, 21119910), (2, 10559955), (3, 7039970), (5, 4223982), (6, 3519985), (7, 3017130), (10, 2111991), (14, 1508565), (15, 1407994), (21, 1005710), (30, 703997), (35, 603426), (42, 502855), (70, 301713), (105, 201142), (163, 129570), (210, 100571), (326, 64785), (489, 43190), (617, 34230), (815, 25914), (978, 21595), (1141, 18510), (1234, 17115), (1630, 12957), (1851, 11410), (2282, 9255), (2445, 8638), (3085, 6846), (3423, 6170), (3702, 5705), (4319, 4890)]