21088830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 58226688

約数和(自身を除く): 37137858

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 233, 431, 466, 699, 862, 1165, 1293, 1398, 1631, 2155, 2330, 2586, 3017, 3262, 3495, 4310, 4893, 6034, 6465, 6990, 8155, 9051, 9786, 12930, 15085, 16310, 18102, 24465, 30170, 45255, 48930, 90510, 100423, 200846, 301269, 502115, 602538, 702961, 1004230, 1405922, 1506345, 2108883, 3012690, 3514805, 4217766, 7029610, 10544415, 21088830]

約数ペア:

[(1, 21088830), (2, 10544415), (3, 7029610), (5, 4217766), (6, 3514805), (7, 3012690), (10, 2108883), (14, 1506345), (15, 1405922), (21, 1004230), (30, 702961), (35, 602538), (42, 502115), (70, 301269), (105, 200846), (210, 100423), (233, 90510), (431, 48930), (466, 45255), (699, 30170), (862, 24465), (1165, 18102), (1293, 16310), (1398, 15085), (1631, 12930), (2155, 9786), (2330, 9051), (2586, 8155), (3017, 6990), (3262, 6465), (3495, 6034), (4310, 4893)]