18785884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 19316516

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 79, 158, 221, 269, 316, 442, 538, 884, 1027, 1076, 1343, 2054, 2686, 3497, 4108, 4573, 5372, 6994, 9146, 13988, 17459, 18292, 21251, 34918, 42502, 59449, 69836, 85004, 118898, 237796, 276263, 361267, 552526, 722534, 1105052, 1445068, 4696471, 9392942, 18785884]

約数ペア:

[(1, 18785884), (2, 9392942), (4, 4696471), (13, 1445068), (17, 1105052), (26, 722534), (34, 552526), (52, 361267), (68, 276263), (79, 237796), (158, 118898), (221, 85004), (269, 69836), (316, 59449), (442, 42502), (538, 34918), (884, 21251), (1027, 18292), (1076, 17459), (1343, 13988), (2054, 9146), (2686, 6994), (3497, 5372), (4108, 4573)]