18828774

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1722

約数の個数: 40

約数和(自身を含む): 42810768

約数和(自身を除く): 23981994

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1637, 1917, 3274, 3834, 4911, 5751, 9822, 11502, 14733, 29466, 44199, 88398, 116227, 132597, 232454, 265194, 348681, 697362, 1046043, 2092086, 3138129, 6276258, 9414387, 18828774]

約数ペア:

[(1, 18828774), (2, 9414387), (3, 6276258), (6, 3138129), (9, 2092086), (18, 1046043), (27, 697362), (54, 348681), (71, 265194), (81, 232454), (142, 132597), (162, 116227), (213, 88398), (426, 44199), (639, 29466), (1278, 14733), (1637, 11502), (1917, 9822), (3274, 5751), (3834, 4911)]