21395826

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^2\times {\mathrm{457}}^1$

素因数の和:505

約数の個数: 60

約数和(自身を含む): 51039978

約数和(自身を除く): 29644152

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 289, 306, 457, 459, 578, 867, 914, 918, 1371, 1377, 1734, 2601, 2742, 2754, 4113, 5202, 7769, 7803, 8226, 12339, 15538, 15606, 23307, 23409, 24678, 37017, 46614, 46818, 69921, 74034, 132073, 139842, 209763, 264146, 396219, 419526, 629289, 792438, 1188657, 1258578, 2377314, 3565971, 7131942, 10697913, 21395826]

約数ペア:

[(1, 21395826), (2, 10697913), (3, 7131942), (6, 3565971), (9, 2377314), (17, 1258578), (18, 1188657), (27, 792438), (34, 629289), (51, 419526), (54, 396219), (81, 264146), (102, 209763), (153, 139842), (162, 132073), (289, 74034), (306, 69921), (457, 46818), (459, 46614), (578, 37017), (867, 24678), (914, 23409), (918, 23307), (1371, 15606), (1377, 15538), (1734, 12339), (2601, 8226), (2742, 7803), (2754, 7769), (4113, 5202)]