21996234

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 55246464

約数和(自身を除く): 33250230

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 39, 46, 61, 67, 69, 78, 117, 122, 134, 138, 183, 201, 207, 234, 299, 366, 402, 414, 549, 598, 603, 793, 871, 897, 1098, 1206, 1403, 1541, 1586, 1742, 1794, 2379, 2613, 2691, 2806, 3082, 4087, 4209, 4623, 4758, 5226, 5382, 7137, 7839, 8174, 8418, 9246, 12261, 12627, 13869, 14274, 15678, 18239, 20033, 24522, 25254, 27738, 36478, 36783, 40066, 53131, 54717, 60099, 73566, 94001, 106262, 109434, 120198, 159393, 164151, 180297, 188002, 282003, 318786, 328302, 360594, 478179, 564006, 846009, 956358, 1222013, 1692018, 2444026, 3666039, 7332078, 10998117, 21996234]

約数ペア:

[(1, 21996234), (2, 10998117), (3, 7332078), (6, 3666039), (9, 2444026), (13, 1692018), (18, 1222013), (23, 956358), (26, 846009), (39, 564006), (46, 478179), (61, 360594), (67, 328302), (69, 318786), (78, 282003), (117, 188002), (122, 180297), (134, 164151), (138, 159393), (183, 120198), (201, 109434), (207, 106262), (234, 94001), (299, 73566), (366, 60099), (402, 54717), (414, 53131), (549, 40066), (598, 36783), (603, 36478), (793, 27738), (871, 25254), (897, 24522), (1098, 20033), (1206, 18239), (1403, 15678), (1541, 14274), (1586, 13869), (1742, 12627), (1794, 12261), (2379, 9246), (2613, 8418), (2691, 8174), (2806, 7839), (3082, 7137), (4087, 5382), (4209, 5226), (4623, 4758)]