21748986

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{2131}}^1$

素因数の和:2158

約数の個数: 56

約数和(自身を含む): 55926624

約数和(自身を除く): 34177638

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 729, 1134, 1458, 1701, 2131, 3402, 4262, 5103, 6393, 10206, 12786, 14917, 19179, 29834, 38358, 44751, 57537, 89502, 115074, 134253, 172611, 268506, 345222, 402759, 517833, 805518, 1035666, 1208277, 1553499, 2416554, 3106998, 3624831, 7249662, 10874493, 21748986]

約数ペア:

[(1, 21748986), (2, 10874493), (3, 7249662), (6, 3624831), (7, 3106998), (9, 2416554), (14, 1553499), (18, 1208277), (21, 1035666), (27, 805518), (42, 517833), (54, 402759), (63, 345222), (81, 268506), (126, 172611), (162, 134253), (189, 115074), (243, 89502), (378, 57537), (486, 44751), (567, 38358), (729, 29834), (1134, 19179), (1458, 14917), (1701, 12786), (2131, 10206), (3402, 6393), (4262, 5103)]