21991812

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1609}}^1$

素因数の和:1700

約数の個数: 48

約数和(自身を含む): 55177920

約数和(自身を除く): 33186108

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 67, 68, 102, 134, 201, 204, 268, 402, 804, 1139, 1609, 2278, 3218, 3417, 4556, 4827, 6436, 6834, 9654, 13668, 19308, 27353, 54706, 82059, 107803, 109412, 164118, 215606, 323409, 328236, 431212, 646818, 1293636, 1832651, 3665302, 5497953, 7330604, 10995906, 21991812]

約数ペア:

[(1, 21991812), (2, 10995906), (3, 7330604), (4, 5497953), (6, 3665302), (12, 1832651), (17, 1293636), (34, 646818), (51, 431212), (67, 328236), (68, 323409), (102, 215606), (134, 164118), (201, 109412), (204, 107803), (268, 82059), (402, 54706), (804, 27353), (1139, 19308), (1609, 13668), (2278, 9654), (3218, 6834), (3417, 6436), (4556, 4827)]