18672645

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 12120315

約数列:

[1, 3, 5, 15, 71, 89, 197, 213, 267, 355, 445, 591, 985, 1065, 1335, 2955, 6319, 13987, 17533, 18957, 31595, 41961, 52599, 69935, 87665, 94785, 209805, 262995, 1244843, 3734529, 6224215, 18672645]

約数ペア:

[(1, 18672645), (3, 6224215), (5, 3734529), (15, 1244843), (71, 262995), (89, 209805), (197, 94785), (213, 87665), (267, 69935), (355, 52599), (445, 41961), (591, 31595), (985, 18957), (1065, 17533), (1335, 13987), (2955, 6319)]