21721470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1451}}^1$

素因数の和:1960

約数の個数: 32

約数和(自身を含む): 52272000

約数和(自身を除く): 30550530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 499, 998, 1451, 1497, 2495, 2902, 2994, 4353, 4990, 7255, 7485, 8706, 14510, 14970, 21765, 43530, 724049, 1448098, 2172147, 3620245, 4344294, 7240490, 10860735, 21721470]

約数ペア:

[(1, 21721470), (2, 10860735), (3, 7240490), (5, 4344294), (6, 3620245), (10, 2172147), (15, 1448098), (30, 724049), (499, 43530), (998, 21765), (1451, 14970), (1497, 14510), (2495, 8706), (2902, 7485), (2994, 7255), (4353, 4990)]