21387036

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 58222080

約数和(自身を除く): 36835044

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 37, 44, 58, 66, 74, 87, 111, 116, 132, 148, 151, 174, 222, 302, 319, 348, 407, 444, 453, 604, 638, 814, 906, 957, 1073, 1221, 1276, 1628, 1661, 1812, 1914, 2146, 2442, 3219, 3322, 3828, 4292, 4379, 4884, 4983, 5587, 6438, 6644, 8758, 9966, 11174, 11803, 12876, 13137, 16761, 17516, 19932, 22348, 23606, 26274, 33522, 35409, 47212, 48169, 52548, 61457, 67044, 70818, 96338, 122914, 141636, 144507, 162023, 184371, 192676, 245828, 289014, 324046, 368742, 486069, 578028, 648092, 737484, 972138, 1782253, 1944276, 3564506, 5346759, 7129012, 10693518, 21387036]

約数ペア:

[(1, 21387036), (2, 10693518), (3, 7129012), (4, 5346759), (6, 3564506), (11, 1944276), (12, 1782253), (22, 972138), (29, 737484), (33, 648092), (37, 578028), (44, 486069), (58, 368742), (66, 324046), (74, 289014), (87, 245828), (111, 192676), (116, 184371), (132, 162023), (148, 144507), (151, 141636), (174, 122914), (222, 96338), (302, 70818), (319, 67044), (348, 61457), (407, 52548), (444, 48169), (453, 47212), (604, 35409), (638, 33522), (814, 26274), (906, 23606), (957, 22348), (1073, 19932), (1221, 17516), (1276, 16761), (1628, 13137), (1661, 12876), (1812, 11803), (1914, 11174), (2146, 9966), (2442, 8758), (3219, 6644), (3322, 6438), (3828, 5587), (4292, 4983), (4379, 4884)]