21239948

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21096052

約数列:

[1, 2, 4, 19, 23, 29, 38, 46, 58, 76, 92, 116, 419, 437, 551, 667, 838, 874, 1102, 1334, 1676, 1748, 2204, 2668, 7961, 9637, 12151, 12673, 15922, 19274, 24302, 25346, 31844, 38548, 48604, 50692, 183103, 230869, 279473, 366206, 461738, 558946, 732412, 923476, 1117892, 5309987, 10619974, 21239948]

約数ペア:

[(1, 21239948), (2, 10619974), (4, 5309987), (19, 1117892), (23, 923476), (29, 732412), (38, 558946), (46, 461738), (58, 366206), (76, 279473), (92, 230869), (116, 183103), (419, 50692), (437, 48604), (551, 38548), (667, 31844), (838, 25346), (874, 24302), (1102, 19274), (1334, 15922), (1676, 12673), (1748, 12151), (2204, 9637), (2668, 7961)]