20187797973

素因数分解:

$3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{619}}^1\times {\mathrm{1489}}^1$

素因数の和:2274

約数の個数: 48

約数和(自身を含む): 31593960000

約数和(自身を除く): 11406162027

約数列:

[1, 3, 7, 21, 49, 147, 149, 447, 619, 1043, 1489, 1857, 3129, 4333, 4467, 7301, 10423, 12999, 21903, 30331, 31269, 72961, 90993, 92231, 218883, 221861, 276693, 645617, 665583, 921691, 1553027, 1936851, 2765073, 4519319, 4659081, 6451837, 10871189, 13557957, 19355511, 32613567, 45162859, 135488577, 137331959, 411995877, 961323713, 2883971139, 6729265991, 20187797973]

約数ペア:

[(1, 20187797973), (3, 6729265991), (7, 2883971139), (21, 961323713), (49, 411995877), (147, 137331959), (149, 135488577), (447, 45162859), (619, 32613567), (1043, 19355511), (1489, 13557957), (1857, 10871189), (3129, 6451837), (4333, 4659081), (4467, 4519319), (7301, 2765073), (10423, 1936851), (12999, 1553027), (21903, 921691), (30331, 665583), (31269, 645617), (72961, 276693), (90993, 221861), (92231, 218883)]