20421192

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{751}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 56309760

約数和(自身を除く): 35888568

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 103, 132, 206, 264, 309, 412, 618, 751, 824, 1133, 1236, 1502, 2253, 2266, 2472, 3004, 3399, 4506, 4532, 6008, 6798, 8261, 9012, 9064, 13596, 16522, 18024, 24783, 27192, 33044, 49566, 66088, 77353, 99132, 154706, 198264, 232059, 309412, 464118, 618824, 850883, 928236, 1701766, 1856472, 2552649, 3403532, 5105298, 6807064, 10210596, 20421192]

約数ペア:

[(1, 20421192), (2, 10210596), (3, 6807064), (4, 5105298), (6, 3403532), (8, 2552649), (11, 1856472), (12, 1701766), (22, 928236), (24, 850883), (33, 618824), (44, 464118), (66, 309412), (88, 232059), (103, 198264), (132, 154706), (206, 99132), (264, 77353), (309, 66088), (412, 49566), (618, 33044), (751, 27192), (824, 24783), (1133, 18024), (1236, 16522), (1502, 13596), (2253, 9064), (2266, 9012), (2472, 8261), (3004, 6798), (3399, 6008), (4506, 4532)]