19837444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 40622400

約数和(自身を除く): 20784956

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 61, 76, 122, 209, 244, 389, 418, 671, 778, 836, 1159, 1342, 1556, 2318, 2684, 4279, 4636, 7391, 8558, 12749, 14782, 17116, 23729, 25498, 29564, 47458, 50996, 81301, 94916, 162602, 261019, 325204, 450851, 522038, 901702, 1044076, 1803404, 4959361, 9918722, 19837444]

約数ペア:

[(1, 19837444), (2, 9918722), (4, 4959361), (11, 1803404), (19, 1044076), (22, 901702), (38, 522038), (44, 450851), (61, 325204), (76, 261019), (122, 162602), (209, 94916), (244, 81301), (389, 50996), (418, 47458), (671, 29564), (778, 25498), (836, 23729), (1159, 17116), (1342, 14782), (1556, 12749), (2318, 8558), (2684, 7391), (4279, 4636)]