21003554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 19251934

約数列:

[1, 2, 11, 13, 22, 23, 26, 31, 46, 62, 103, 143, 206, 253, 286, 299, 341, 403, 506, 598, 682, 713, 806, 1133, 1339, 1426, 2266, 2369, 2678, 3193, 3289, 4433, 4738, 6386, 6578, 7843, 8866, 9269, 14729, 15686, 18538, 26059, 29458, 30797, 35123, 41509, 52118, 61594, 70246, 73439, 83018, 101959, 146878, 203918, 338767, 456599, 677534, 807829, 913198, 954707, 1615658, 1909414, 10501777, 21003554]

約数ペア:

[(1, 21003554), (2, 10501777), (11, 1909414), (13, 1615658), (22, 954707), (23, 913198), (26, 807829), (31, 677534), (46, 456599), (62, 338767), (103, 203918), (143, 146878), (206, 101959), (253, 83018), (286, 73439), (299, 70246), (341, 61594), (403, 52118), (506, 41509), (598, 35123), (682, 30797), (713, 29458), (806, 26059), (1133, 18538), (1339, 15686), (1426, 14729), (2266, 9269), (2369, 8866), (2678, 7843), (3193, 6578), (3289, 6386), (4433, 4738)]