19911924

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 54294240

約数和(自身を除く): 34382316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 677, 684, 774, 817, 1354, 1548, 1634, 2031, 2451, 2708, 3268, 4062, 4902, 6093, 7353, 8124, 9804, 12186, 12863, 14706, 24372, 25726, 29111, 29412, 38589, 51452, 58222, 77178, 87333, 115767, 116444, 154356, 174666, 231534, 261999, 349332, 463068, 523998, 553109, 1047996, 1106218, 1659327, 2212436, 3318654, 4977981, 6637308, 9955962, 19911924]

約数ペア:

[(1, 19911924), (2, 9955962), (3, 6637308), (4, 4977981), (6, 3318654), (9, 2212436), (12, 1659327), (18, 1106218), (19, 1047996), (36, 553109), (38, 523998), (43, 463068), (57, 349332), (76, 261999), (86, 231534), (114, 174666), (129, 154356), (171, 116444), (172, 115767), (228, 87333), (258, 77178), (342, 58222), (387, 51452), (516, 38589), (677, 29412), (684, 29111), (774, 25726), (817, 24372), (1354, 14706), (1548, 12863), (1634, 12186), (2031, 9804), (2451, 8124), (2708, 7353), (3268, 6093), (4062, 4902)]