18880395

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2195

約数の個数: 32

約数和(自身を含む): 32839680

約数和(自身を除く): 13959285

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 155, 285, 465, 589, 1767, 2137, 2945, 6411, 8835, 10685, 32055, 40603, 66247, 121809, 198741, 203015, 331235, 609045, 993705, 1258693, 3776079, 6293465, 18880395]

約数ペア:

[(1, 18880395), (3, 6293465), (5, 3776079), (15, 1258693), (19, 993705), (31, 609045), (57, 331235), (93, 203015), (95, 198741), (155, 121809), (285, 66247), (465, 40603), (589, 32055), (1767, 10685), (2137, 8835), (2945, 6411)]