19172178

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1007

約数の個数: 48

約数和(自身を含む): 44491200

約数和(自身を除く): 25319022

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 61, 114, 122, 171, 183, 342, 366, 549, 919, 1098, 1159, 1838, 2318, 2757, 3477, 5514, 6954, 8271, 10431, 16542, 17461, 20862, 34922, 52383, 56059, 104766, 112118, 157149, 168177, 314298, 336354, 504531, 1009062, 1065121, 2130242, 3195363, 6390726, 9586089, 19172178]

約数ペア:

[(1, 19172178), (2, 9586089), (3, 6390726), (6, 3195363), (9, 2130242), (18, 1065121), (19, 1009062), (38, 504531), (57, 336354), (61, 314298), (114, 168177), (122, 157149), (171, 112118), (183, 104766), (342, 56059), (366, 52383), (549, 34922), (919, 20862), (1098, 17461), (1159, 16542), (1838, 10431), (2318, 8271), (2757, 6954), (3477, 5514)]