21190290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 55969920

約数和(自身を除く): 34779630

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 157, 165, 314, 330, 409, 471, 785, 818, 942, 1227, 1570, 1727, 2045, 2355, 2454, 3454, 4090, 4499, 4710, 5181, 6135, 8635, 8998, 10362, 12270, 13497, 17270, 22495, 25905, 26994, 44990, 51810, 64213, 67485, 128426, 134970, 192639, 321065, 385278, 642130, 706343, 963195, 1412686, 1926390, 2119029, 3531715, 4238058, 7063430, 10595145, 21190290]

約数ペア:

[(1, 21190290), (2, 10595145), (3, 7063430), (5, 4238058), (6, 3531715), (10, 2119029), (11, 1926390), (15, 1412686), (22, 963195), (30, 706343), (33, 642130), (55, 385278), (66, 321065), (110, 192639), (157, 134970), (165, 128426), (314, 67485), (330, 64213), (409, 51810), (471, 44990), (785, 26994), (818, 25905), (942, 22495), (1227, 17270), (1570, 13497), (1727, 12270), (2045, 10362), (2355, 8998), (2454, 8635), (3454, 6135), (4090, 5181), (4499, 4710)]