18904204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 38707200

約数和(自身を除く): 19802996

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 127, 187, 199, 254, 374, 398, 508, 748, 796, 1397, 2159, 2189, 2794, 3383, 4318, 4378, 5588, 6766, 8636, 8756, 13532, 23749, 25273, 37213, 47498, 50546, 74426, 94996, 101092, 148852, 278003, 429641, 556006, 859282, 1112012, 1718564, 4726051, 9452102, 18904204]

約数ペア:

[(1, 18904204), (2, 9452102), (4, 4726051), (11, 1718564), (17, 1112012), (22, 859282), (34, 556006), (44, 429641), (68, 278003), (127, 148852), (187, 101092), (199, 94996), (254, 74426), (374, 50546), (398, 47498), (508, 37213), (748, 25273), (796, 23749), (1397, 13532), (2159, 8756), (2189, 8636), (2794, 6766), (3383, 5588), (4318, 4378)]