21252888

素因数分解:

$2^3\times 3^3\times {\mathrm{61}}^1\times {\mathrm{1613}}^1$

素因数の和:1689

約数の個数: 64

約数和(自身を含む): 60040800

約数和(自身を除く): 38787912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 108, 122, 183, 216, 244, 366, 488, 549, 732, 1098, 1464, 1613, 1647, 2196, 3226, 3294, 4392, 4839, 6452, 6588, 9678, 12904, 13176, 14517, 19356, 29034, 38712, 43551, 58068, 87102, 98393, 116136, 174204, 196786, 295179, 348408, 393572, 590358, 787144, 885537, 1180716, 1771074, 2361432, 2656611, 3542148, 5313222, 7084296, 10626444, 21252888]

約数ペア:

[(1, 21252888), (2, 10626444), (3, 7084296), (4, 5313222), (6, 3542148), (8, 2656611), (9, 2361432), (12, 1771074), (18, 1180716), (24, 885537), (27, 787144), (36, 590358), (54, 393572), (61, 348408), (72, 295179), (108, 196786), (122, 174204), (183, 116136), (216, 98393), (244, 87102), (366, 58068), (488, 43551), (549, 38712), (732, 29034), (1098, 19356), (1464, 14517), (1613, 13176), (1647, 12904), (2196, 9678), (3226, 6588), (3294, 6452), (4392, 4839)]