About the Number

31214988

31214987 ← → 31214989

2進数表記:1110111000100110110001100

漢数字表記:三千百二十一万四千九百八十八

素因数分解:

2 2 × 3 2 × 7 1 × 97 1 × 1277 1

素因数の和:1391
約数の個数: 72
約数和(自身を含む): 91177632
約数和(自身を除く): 59962644

約数列:
[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 97, 126, 194, 252, 291, 388, 582, 679, 873, 1164, 1277, 1358, 1746, 2037, 2554, 2716, 3492, 3831, 4074, 5108, 6111, 7662, 8148, 8939, 11493, 12222, 15324, 17878, 22986, 24444, 26817, 35756, 45972, 53634, 80451, 107268, 123869, 160902, 247738, 321804, 371607, 495476, 743214, 867083, 1114821, 1486428, 1734166, 2229642, 2601249, 3468332, 4459284, 5202498, 7803747, 10404996, 15607494, 31214988]

約数ペア:
[(1, 31214988), (2, 15607494), (3, 10404996), (4, 7803747), (6, 5202498), (7, 4459284), (9, 3468332), (12, 2601249), (14, 2229642), (18, 1734166), (21, 1486428), (28, 1114821), (36, 867083), (42, 743214), (63, 495476), (84, 371607), (97, 321804), (126, 247738), (194, 160902), (252, 123869), (291, 107268), (388, 80451), (582, 53634), (679, 45972), (873, 35756), (1164, 26817), (1277, 24444), (1358, 22986), (1746, 17878), (2037, 15324), (2554, 12222), (2716, 11493), (3492, 8939), (3831, 8148), (4074, 7662), (5108, 6111)]

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