18913518

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:769

約数の個数: 48

約数和(自身を含む): 44540496

約数和(自身を除く): 25626978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 131, 234, 262, 393, 617, 786, 1179, 1234, 1703, 1851, 2358, 3406, 3702, 5109, 5553, 8021, 10218, 11106, 15327, 16042, 24063, 30654, 48126, 72189, 80827, 144378, 161654, 242481, 484962, 727443, 1050751, 1454886, 2101502, 3152253, 6304506, 9456759, 18913518]

約数ペア:

[(1, 18913518), (2, 9456759), (3, 6304506), (6, 3152253), (9, 2101502), (13, 1454886), (18, 1050751), (26, 727443), (39, 484962), (78, 242481), (117, 161654), (131, 144378), (234, 80827), (262, 72189), (393, 48126), (617, 30654), (786, 24063), (1179, 16042), (1234, 15327), (1703, 11106), (1851, 10218), (2358, 8021), (3406, 5553), (3702, 5109)]