218988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 698880

約数和(自身を除く): 479892

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 79, 84, 99, 126, 132, 154, 158, 198, 231, 237, 252, 308, 316, 396, 462, 474, 553, 693, 711, 869, 924, 948, 1106, 1386, 1422, 1659, 1738, 2212, 2607, 2772, 2844, 3318, 3476, 4977, 5214, 6083, 6636, 7821, 9954, 10428, 12166, 15642, 18249, 19908, 24332, 31284, 36498, 54747, 72996, 109494, 218988]

約数ペア:

[(1, 218988), (2, 109494), (3, 72996), (4, 54747), (6, 36498), (7, 31284), (9, 24332), (11, 19908), (12, 18249), (14, 15642), (18, 12166), (21, 10428), (22, 9954), (28, 7821), (33, 6636), (36, 6083), (42, 5214), (44, 4977), (63, 3476), (66, 3318), (77, 2844), (79, 2772), (84, 2607), (99, 2212), (126, 1738), (132, 1659), (154, 1422), (158, 1386), (198, 1106), (231, 948), (237, 924), (252, 869), (308, 711), (316, 693), (396, 553), (462, 474)]