21348124

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 47401200

約数和(自身を除く): 26053076

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 43, 49, 68, 86, 98, 119, 149, 172, 196, 238, 298, 301, 476, 596, 602, 731, 833, 1043, 1204, 1462, 1666, 2086, 2107, 2533, 2924, 3332, 4172, 4214, 5066, 5117, 6407, 7301, 8428, 10132, 10234, 12814, 14602, 17731, 20468, 25628, 29204, 35462, 35819, 44849, 70924, 71638, 89698, 108919, 124117, 143276, 179396, 217838, 248234, 313943, 435676, 496468, 627886, 762433, 1255772, 1524866, 3049732, 5337031, 10674062, 21348124]

約数ペア:

[(1, 21348124), (2, 10674062), (4, 5337031), (7, 3049732), (14, 1524866), (17, 1255772), (28, 762433), (34, 627886), (43, 496468), (49, 435676), (68, 313943), (86, 248234), (98, 217838), (119, 179396), (149, 143276), (172, 124117), (196, 108919), (238, 89698), (298, 71638), (301, 70924), (476, 44849), (596, 35819), (602, 35462), (731, 29204), (833, 25628), (1043, 20468), (1204, 17731), (1462, 14602), (1666, 12814), (2086, 10234), (2107, 10132), (2533, 8428), (2924, 7301), (3332, 6407), (4172, 5117), (4214, 5066)]