218060355

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{20389}}^1$

素因数の和:20451

約数の個数: 32

約数和(自身を含む): 375828480

約数和(自身を除く): 157768125

約数列:

[1, 3, 5, 15, 23, 31, 69, 93, 115, 155, 345, 465, 713, 2139, 3565, 10695, 20389, 61167, 101945, 305835, 468947, 632059, 1406841, 1896177, 2344735, 3160295, 7034205, 9480885, 14537357, 43612071, 72686785, 218060355]

約数ペア:

[(1, 218060355), (3, 72686785), (5, 43612071), (15, 14537357), (23, 9480885), (31, 7034205), (69, 3160295), (93, 2344735), (115, 1896177), (155, 1406841), (345, 632059), (465, 468947), (713, 305835), (2139, 101945), (3565, 61167), (10695, 20389)]