20519352

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 128

約数和(自身を含む): 66931200

約数和(自身を除く): 46411848

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 41, 42, 54, 56, 63, 72, 82, 84, 108, 123, 126, 164, 168, 189, 216, 246, 252, 287, 328, 331, 369, 378, 492, 504, 574, 662, 738, 756, 861, 984, 993, 1107, 1148, 1324, 1476, 1512, 1722, 1986, 2214, 2296, 2317, 2583, 2648, 2952, 2979, 3444, 3972, 4428, 4634, 5166, 5958, 6888, 6951, 7749, 7944, 8856, 8937, 9268, 10332, 11916, 13571, 13902, 15498, 17874, 18536, 20664, 20853, 23832, 27142, 27804, 30996, 35748, 40713, 41706, 54284, 55608, 61992, 62559, 71496, 81426, 83412, 94997, 108568, 122139, 125118, 162852, 166824, 189994, 244278, 250236, 284991, 325704, 366417, 379988, 488556, 500472, 569982, 732834, 759976, 854973, 977112, 1139964, 1465668, 1709946, 2279928, 2564919, 2931336, 3419892, 5129838, 6839784, 10259676, 20519352]

約数ペア:

[(1, 20519352), (2, 10259676), (3, 6839784), (4, 5129838), (6, 3419892), (7, 2931336), (8, 2564919), (9, 2279928), (12, 1709946), (14, 1465668), (18, 1139964), (21, 977112), (24, 854973), (27, 759976), (28, 732834), (36, 569982), (41, 500472), (42, 488556), (54, 379988), (56, 366417), (63, 325704), (72, 284991), (82, 250236), (84, 244278), (108, 189994), (123, 166824), (126, 162852), (164, 125118), (168, 122139), (189, 108568), (216, 94997), (246, 83412), (252, 81426), (287, 71496), (328, 62559), (331, 61992), (369, 55608), (378, 54284), (492, 41706), (504, 40713), (574, 35748), (662, 30996), (738, 27804), (756, 27142), (861, 23832), (984, 20853), (993, 20664), (1107, 18536), (1148, 17874), (1324, 15498), (1476, 13902), (1512, 13571), (1722, 11916), (1986, 10332), (2214, 9268), (2296, 8937), (2317, 8856), (2583, 7944), (2648, 7749), (2952, 6951), (2979, 6888), (3444, 5958), (3972, 5166), (4428, 4634)]