21901560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{797}}^1$

素因数の和:1040

約数の個数: 64

約数和(自身を含む): 66074400

約数和(自身を除く): 44172840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 229, 458, 687, 797, 916, 1145, 1374, 1594, 1832, 2290, 2391, 2748, 3188, 3435, 3985, 4580, 4782, 5496, 6376, 6870, 7970, 9160, 9564, 11955, 13740, 15940, 19128, 23910, 27480, 31880, 47820, 95640, 182513, 365026, 547539, 730052, 912565, 1095078, 1460104, 1825130, 2190156, 2737695, 3650260, 4380312, 5475390, 7300520, 10950780, 21901560]

約数ペア:

[(1, 21901560), (2, 10950780), (3, 7300520), (4, 5475390), (5, 4380312), (6, 3650260), (8, 2737695), (10, 2190156), (12, 1825130), (15, 1460104), (20, 1095078), (24, 912565), (30, 730052), (40, 547539), (60, 365026), (120, 182513), (229, 95640), (458, 47820), (687, 31880), (797, 27480), (916, 23910), (1145, 19128), (1374, 15940), (1594, 13740), (1832, 11955), (2290, 9564), (2391, 9160), (2748, 7970), (3188, 6870), (3435, 6376), (3985, 5496), (4580, 4782)]