21492690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16661}}^1$

素因数の和:16714

約数の個数: 32

約数和(自身を含む): 52785216

約数和(自身を除く): 31292526

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16661, 33322, 49983, 83305, 99966, 166610, 249915, 499830, 716423, 1432846, 2149269, 3582115, 4298538, 7164230, 10746345, 21492690]

約数ペア:

[(1, 21492690), (2, 10746345), (3, 7164230), (5, 4298538), (6, 3582115), (10, 2149269), (15, 1432846), (30, 716423), (43, 499830), (86, 249915), (129, 166610), (215, 99966), (258, 83305), (430, 49983), (645, 33322), (1290, 16661)]