21986865

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 41395536

約数和(自身を除く): 19408671

約数列:

[1, 3, 5, 9, 15, 17, 41, 45, 51, 85, 123, 153, 205, 255, 369, 615, 697, 701, 765, 1845, 2091, 2103, 3485, 3505, 6273, 6309, 10455, 10515, 11917, 28741, 31365, 31545, 35751, 59585, 86223, 107253, 143705, 178755, 258669, 431115, 488597, 536265, 1293345, 1465791, 2442985, 4397373, 7328955, 21986865]

約数ペア:

[(1, 21986865), (3, 7328955), (5, 4397373), (9, 2442985), (15, 1465791), (17, 1293345), (41, 536265), (45, 488597), (51, 431115), (85, 258669), (123, 178755), (153, 143705), (205, 107253), (255, 86223), (369, 59585), (615, 35751), (697, 31545), (701, 31365), (765, 28741), (1845, 11917), (2091, 10515), (2103, 10455), (3485, 6309), (3505, 6273)]