18339855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 33592320

約数和(自身を除く): 15252465

約数列:

[1, 3, 5, 15, 17, 23, 51, 53, 59, 69, 85, 115, 159, 177, 255, 265, 295, 345, 391, 795, 885, 901, 1003, 1173, 1219, 1357, 1955, 2703, 3009, 3127, 3657, 4071, 4505, 5015, 5865, 6095, 6785, 9381, 13515, 15045, 15635, 18285, 20355, 20723, 23069, 46905, 53159, 62169, 69207, 71921, 103615, 115345, 159477, 215763, 265795, 310845, 346035, 359605, 797385, 1078815, 1222657, 3667971, 6113285, 18339855]

約数ペア:

[(1, 18339855), (3, 6113285), (5, 3667971), (15, 1222657), (17, 1078815), (23, 797385), (51, 359605), (53, 346035), (59, 310845), (69, 265795), (85, 215763), (115, 159477), (159, 115345), (177, 103615), (255, 71921), (265, 69207), (295, 62169), (345, 53159), (391, 46905), (795, 23069), (885, 20723), (901, 20355), (1003, 18285), (1173, 15635), (1219, 15045), (1357, 13515), (1955, 9381), (2703, 6785), (3009, 6095), (3127, 5865), (3657, 5015), (4071, 4505)]