20983866

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26294214

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 53, 57, 69, 106, 114, 138, 151, 159, 302, 318, 437, 453, 874, 906, 1007, 1219, 1311, 2014, 2438, 2622, 2869, 3021, 3473, 3657, 5738, 6042, 6946, 7314, 8003, 8607, 10419, 16006, 17214, 20838, 23161, 24009, 46322, 48018, 65987, 69483, 131974, 138966, 152057, 184069, 197961, 304114, 368138, 395922, 456171, 552207, 912342, 1104414, 3497311, 6994622, 10491933, 20983866]

約数ペア:

[(1, 20983866), (2, 10491933), (3, 6994622), (6, 3497311), (19, 1104414), (23, 912342), (38, 552207), (46, 456171), (53, 395922), (57, 368138), (69, 304114), (106, 197961), (114, 184069), (138, 152057), (151, 138966), (159, 131974), (302, 69483), (318, 65987), (437, 48018), (453, 46322), (874, 24009), (906, 23161), (1007, 20838), (1219, 17214), (1311, 16006), (2014, 10419), (2438, 8607), (2622, 8003), (2869, 7314), (3021, 6946), (3473, 6042), (3657, 5738)]