18917964

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{40423}}^1$

素因数の和:40446

約数の個数: 36

約数和(自身を含む): 51500176

約数和(自身を除く): 32582212

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 40423, 80846, 121269, 161692, 242538, 363807, 485076, 525499, 727614, 1050998, 1455228, 1576497, 2101996, 3152994, 4729491, 6305988, 9458982, 18917964]

約数ペア:

[(1, 18917964), (2, 9458982), (3, 6305988), (4, 4729491), (6, 3152994), (9, 2101996), (12, 1576497), (13, 1455228), (18, 1050998), (26, 727614), (36, 525499), (39, 485076), (52, 363807), (78, 242538), (117, 161692), (156, 121269), (234, 80846), (468, 40423)]