19642590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19841}}^1$

素因数の和:19865

約数の個数: 48

約数和(自身を含む): 55716336

約数和(自身を除く): 36073746

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 19841, 39682, 59523, 99205, 119046, 178569, 198410, 218251, 297615, 357138, 436502, 595230, 654753, 892845, 1091255, 1309506, 1785690, 1964259, 2182510, 3273765, 3928518, 6547530, 9821295, 19642590]

約数ペア:

[(1, 19642590), (2, 9821295), (3, 6547530), (5, 3928518), (6, 3273765), (9, 2182510), (10, 1964259), (11, 1785690), (15, 1309506), (18, 1091255), (22, 892845), (30, 654753), (33, 595230), (45, 436502), (55, 357138), (66, 297615), (90, 218251), (99, 198410), (110, 178569), (165, 119046), (198, 99205), (330, 59523), (495, 39682), (990, 19841)]