21787302

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 27854682

約数列:

[1, 2, 3, 6, 17, 23, 34, 37, 46, 51, 69, 74, 102, 111, 138, 222, 251, 391, 502, 629, 753, 782, 851, 1173, 1258, 1506, 1702, 1887, 2346, 2553, 3774, 4267, 5106, 5773, 8534, 9287, 11546, 12801, 14467, 17319, 18574, 25602, 27861, 28934, 34638, 43401, 55722, 86802, 98141, 157879, 196282, 213601, 294423, 315758, 427202, 473637, 588846, 640803, 947274, 1281606, 3631217, 7262434, 10893651, 21787302]

約数ペア:

[(1, 21787302), (2, 10893651), (3, 7262434), (6, 3631217), (17, 1281606), (23, 947274), (34, 640803), (37, 588846), (46, 473637), (51, 427202), (69, 315758), (74, 294423), (102, 213601), (111, 196282), (138, 157879), (222, 98141), (251, 86802), (391, 55722), (502, 43401), (629, 34638), (753, 28934), (782, 27861), (851, 25602), (1173, 18574), (1258, 17319), (1506, 14467), (1702, 12801), (1887, 11546), (2346, 9287), (2553, 8534), (3774, 5773), (4267, 5106)]