19972876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3413}}^1$

素因数の和:3454

約数の個数: 48

約数和(自身を含む): 45884160

約数和(自身を除く): 25911284

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 209, 266, 308, 418, 532, 836, 1463, 2926, 3413, 5852, 6826, 13652, 23891, 37543, 47782, 64847, 75086, 95564, 129694, 150172, 259388, 262801, 453929, 525602, 713317, 907858, 1051204, 1426634, 1815716, 2853268, 4993219, 9986438, 19972876]

約数ペア:

[(1, 19972876), (2, 9986438), (4, 4993219), (7, 2853268), (11, 1815716), (14, 1426634), (19, 1051204), (22, 907858), (28, 713317), (38, 525602), (44, 453929), (76, 262801), (77, 259388), (133, 150172), (154, 129694), (209, 95564), (266, 75086), (308, 64847), (418, 47782), (532, 37543), (836, 23891), (1463, 13652), (2926, 6826), (3413, 5852)]