19589985

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 36224640

約数和(自身を除く): 16634655

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 151, 155, 279, 453, 465, 755, 837, 961, 1359, 1395, 2265, 2883, 4077, 4185, 4681, 4805, 6795, 8649, 14043, 14415, 20385, 23405, 25947, 42129, 43245, 70215, 126387, 129735, 145111, 210645, 435333, 631935, 725555, 1305999, 2176665, 3917997, 6529995, 19589985]

約数ペア:

[(1, 19589985), (3, 6529995), (5, 3917997), (9, 2176665), (15, 1305999), (27, 725555), (31, 631935), (45, 435333), (93, 210645), (135, 145111), (151, 129735), (155, 126387), (279, 70215), (453, 43245), (465, 42129), (755, 25947), (837, 23405), (961, 20385), (1359, 14415), (1395, 14043), (2265, 8649), (2883, 6795), (4077, 4805), (4185, 4681)]