21513876

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 52297728

約数和(自身を除く): 30783852

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 151, 186, 302, 372, 383, 453, 604, 766, 906, 1149, 1532, 1812, 2298, 4596, 4681, 9362, 11873, 14043, 18724, 23746, 28086, 35619, 47492, 56172, 57833, 71238, 115666, 142476, 173499, 231332, 346998, 693996, 1792823, 3585646, 5378469, 7171292, 10756938, 21513876]

約数ペア:

[(1, 21513876), (2, 10756938), (3, 7171292), (4, 5378469), (6, 3585646), (12, 1792823), (31, 693996), (62, 346998), (93, 231332), (124, 173499), (151, 142476), (186, 115666), (302, 71238), (372, 57833), (383, 56172), (453, 47492), (604, 35619), (766, 28086), (906, 23746), (1149, 18724), (1532, 14043), (1812, 11873), (2298, 9362), (4596, 4681)]