21052766

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1669}}^1$

素因数の和:1748

約数の個数: 32

約数和(自身を含む): 38957760

約数和(自身を除く): 17904994

約数列:

[1, 2, 7, 14, 17, 34, 53, 106, 119, 238, 371, 742, 901, 1669, 1802, 3338, 6307, 11683, 12614, 23366, 28373, 56746, 88457, 176914, 198611, 397222, 619199, 1238398, 1503769, 3007538, 10526383, 21052766]

約数ペア:

[(1, 21052766), (2, 10526383), (7, 3007538), (14, 1503769), (17, 1238398), (34, 619199), (53, 397222), (106, 198611), (119, 176914), (238, 88457), (371, 56746), (742, 28373), (901, 23366), (1669, 12614), (1802, 11683), (3338, 6307)]