20589738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{499}}^1$

素因数の和:563

約数の個数: 48

約数和(自身を含む): 46452000

約数和(自身を除く): 25862262

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 499, 529, 598, 897, 998, 1058, 1497, 1587, 1794, 2994, 3174, 6487, 6877, 11477, 12974, 13754, 19461, 20631, 22954, 34431, 38922, 41262, 68862, 149201, 263971, 298402, 447603, 527942, 791913, 895206, 1583826, 3431623, 6863246, 10294869, 20589738]

約数ペア:

[(1, 20589738), (2, 10294869), (3, 6863246), (6, 3431623), (13, 1583826), (23, 895206), (26, 791913), (39, 527942), (46, 447603), (69, 298402), (78, 263971), (138, 149201), (299, 68862), (499, 41262), (529, 38922), (598, 34431), (897, 22954), (998, 20631), (1058, 19461), (1497, 13754), (1587, 12974), (1794, 11477), (2994, 6877), (3174, 6487)]