20131982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 34715520

約数和(自身を除く): 14583538

約数列:

[1, 2, 13, 19, 26, 38, 83, 166, 247, 491, 494, 982, 1079, 1577, 2158, 3154, 6383, 9329, 12766, 18658, 20501, 40753, 41002, 81506, 121277, 242554, 529789, 774307, 1059578, 1548614, 10065991, 20131982]

約数ペア:

[(1, 20131982), (2, 10065991), (13, 1548614), (19, 1059578), (26, 774307), (38, 529789), (83, 242554), (166, 121277), (247, 81506), (491, 41002), (494, 40753), (982, 20501), (1079, 18658), (1577, 12766), (2158, 9329), (3154, 6383)]