21653880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4877}}^1$

素因数の和:4928

約数の個数: 64

約数和(自身を含む): 66731040

約数和(自身を除く): 45077160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4877, 9754, 14631, 19508, 24385, 29262, 39016, 48770, 58524, 73155, 97540, 117048, 146310, 180449, 195080, 292620, 360898, 541347, 585240, 721796, 902245, 1082694, 1443592, 1804490, 2165388, 2706735, 3608980, 4330776, 5413470, 7217960, 10826940, 21653880]

約数ペア:

[(1, 21653880), (2, 10826940), (3, 7217960), (4, 5413470), (5, 4330776), (6, 3608980), (8, 2706735), (10, 2165388), (12, 1804490), (15, 1443592), (20, 1082694), (24, 902245), (30, 721796), (37, 585240), (40, 541347), (60, 360898), (74, 292620), (111, 195080), (120, 180449), (148, 146310), (185, 117048), (222, 97540), (296, 73155), (370, 58524), (444, 48770), (555, 39016), (740, 29262), (888, 24385), (1110, 19508), (1480, 14631), (2220, 9754), (4440, 4877)]