21798392

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3217}}^1$

素因数の和:3252

約数の個数: 48

約数和(自身を含む): 51359280

約数和(自身を除く): 29560888

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 3217, 3388, 6434, 6776, 12868, 22519, 25736, 35387, 45038, 70774, 90076, 141548, 180152, 247709, 283096, 389257, 495418, 778514, 990836, 1557028, 1981672, 2724799, 3114056, 5449598, 10899196, 21798392]

約数ペア:

[(1, 21798392), (2, 10899196), (4, 5449598), (7, 3114056), (8, 2724799), (11, 1981672), (14, 1557028), (22, 990836), (28, 778514), (44, 495418), (56, 389257), (77, 283096), (88, 247709), (121, 180152), (154, 141548), (242, 90076), (308, 70774), (484, 45038), (616, 35387), (847, 25736), (968, 22519), (1694, 12868), (3217, 6776), (3388, 6434)]