18898407

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 15315993

約数列:

[1, 3, 9, 11, 17, 19, 27, 33, 51, 57, 99, 153, 171, 187, 197, 209, 297, 323, 459, 513, 561, 591, 627, 969, 1683, 1773, 1881, 2167, 2907, 3349, 3553, 3743, 5049, 5319, 5643, 6501, 8721, 10047, 10659, 11229, 19503, 30141, 31977, 33687, 36839, 41173, 58509, 63631, 90423, 95931, 101061, 110517, 123519, 190893, 331551, 370557, 572679, 699941, 994653, 1111671, 1718037, 2099823, 6299469, 18898407]

約数ペア:

[(1, 18898407), (3, 6299469), (9, 2099823), (11, 1718037), (17, 1111671), (19, 994653), (27, 699941), (33, 572679), (51, 370557), (57, 331551), (99, 190893), (153, 123519), (171, 110517), (187, 101061), (197, 95931), (209, 90423), (297, 63631), (323, 58509), (459, 41173), (513, 36839), (561, 33687), (591, 31977), (627, 30141), (969, 19503), (1683, 11229), (1773, 10659), (1881, 10047), (2167, 8721), (2907, 6501), (3349, 5643), (3553, 5319), (3743, 5049)]