18736758

素因数分解:

$2^1\times 3^6\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 56

約数和(自身を含む): 42968016

約数和(自身を除く): 24231258

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 181, 213, 243, 362, 426, 486, 543, 639, 729, 1086, 1278, 1458, 1629, 1917, 3258, 3834, 4887, 5751, 9774, 11502, 12851, 14661, 17253, 25702, 29322, 34506, 38553, 43983, 51759, 77106, 87966, 103518, 115659, 131949, 231318, 263898, 346977, 693954, 1040931, 2081862, 3122793, 6245586, 9368379, 18736758]

約数ペア:

[(1, 18736758), (2, 9368379), (3, 6245586), (6, 3122793), (9, 2081862), (18, 1040931), (27, 693954), (54, 346977), (71, 263898), (81, 231318), (142, 131949), (162, 115659), (181, 103518), (213, 87966), (243, 77106), (362, 51759), (426, 43983), (486, 38553), (543, 34506), (639, 29322), (729, 25702), (1086, 17253), (1278, 14661), (1458, 12851), (1629, 11502), (1917, 9774), (3258, 5751), (3834, 4887)]