21980302

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 36679680

約数和(自身を除く): 14699378

約数列:

[1, 2, 19, 31, 38, 47, 62, 94, 397, 589, 794, 893, 1178, 1457, 1786, 2914, 7543, 12307, 15086, 18659, 24614, 27683, 37318, 55366, 233833, 354521, 467666, 578429, 709042, 1156858, 10990151, 21980302]

約数ペア:

[(1, 21980302), (2, 10990151), (19, 1156858), (31, 709042), (38, 578429), (47, 467666), (62, 354521), (94, 233833), (397, 55366), (589, 37318), (794, 27683), (893, 24614), (1178, 18659), (1457, 15086), (1786, 12307), (2914, 7543)]