21761268

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{233}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 52468416

約数和(自身を除く): 30707148

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 181, 233, 258, 362, 466, 516, 543, 699, 724, 932, 1086, 1398, 2172, 2796, 7783, 10019, 15566, 20038, 23349, 30057, 31132, 40076, 42173, 46698, 60114, 84346, 93396, 120228, 126519, 168692, 253038, 506076, 1813439, 3626878, 5440317, 7253756, 10880634, 21761268]

約数ペア:

[(1, 21761268), (2, 10880634), (3, 7253756), (4, 5440317), (6, 3626878), (12, 1813439), (43, 506076), (86, 253038), (129, 168692), (172, 126519), (181, 120228), (233, 93396), (258, 84346), (362, 60114), (466, 46698), (516, 42173), (543, 40076), (699, 31132), (724, 30057), (932, 23349), (1086, 20038), (1398, 15566), (2172, 10019), (2796, 7783)]