18406854

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 42018912

約数和(自身を除く): 23612058

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 173, 207, 257, 346, 414, 514, 519, 771, 1038, 1542, 1557, 2313, 3114, 3979, 4626, 5911, 7958, 11822, 11937, 17733, 23874, 35466, 35811, 44461, 53199, 71622, 88922, 106398, 133383, 266766, 400149, 800298, 1022603, 2045206, 3067809, 6135618, 9203427, 18406854]

約数ペア:

[(1, 18406854), (2, 9203427), (3, 6135618), (6, 3067809), (9, 2045206), (18, 1022603), (23, 800298), (46, 400149), (69, 266766), (138, 133383), (173, 106398), (207, 88922), (257, 71622), (346, 53199), (414, 44461), (514, 35811), (519, 35466), (771, 23874), (1038, 17733), (1542, 11937), (1557, 11822), (2313, 7958), (3114, 5911), (3979, 4626)]