220472679

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{2207}}^1$

素因数の和:2355

約数の個数: 32

約数和(自身を含む): 345931776

約数和(自身を除く): 125459097

約数列:

[1, 3, 7, 21, 67, 71, 201, 213, 469, 497, 1407, 1491, 2207, 4757, 6621, 14271, 15449, 33299, 46347, 99897, 147869, 156697, 443607, 470091, 1035083, 1096879, 3105249, 3290637, 10498699, 31496097, 73490893, 220472679]

約数ペア:

[(1, 220472679), (3, 73490893), (7, 31496097), (21, 10498699), (67, 3290637), (71, 3105249), (201, 1096879), (213, 1035083), (469, 470091), (497, 443607), (1407, 156697), (1491, 147869), (2207, 99897), (4757, 46347), (6621, 33299), (14271, 15449)]