18695988

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^2\times {\mathrm{599}}^1$

素因数の和:646

約数の個数: 72

約数和(自身を含む): 51576000

約数和(自身を除く): 32880012

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 102, 108, 153, 204, 289, 306, 459, 578, 599, 612, 867, 918, 1156, 1198, 1734, 1797, 1836, 2396, 2601, 3468, 3594, 5202, 5391, 7188, 7803, 10183, 10404, 10782, 15606, 16173, 20366, 21564, 30549, 31212, 32346, 40732, 61098, 64692, 91647, 122196, 173111, 183294, 274941, 346222, 366588, 519333, 549882, 692444, 1038666, 1099764, 1557999, 2077332, 3115998, 4673997, 6231996, 9347994, 18695988]

約数ペア:

[(1, 18695988), (2, 9347994), (3, 6231996), (4, 4673997), (6, 3115998), (9, 2077332), (12, 1557999), (17, 1099764), (18, 1038666), (27, 692444), (34, 549882), (36, 519333), (51, 366588), (54, 346222), (68, 274941), (102, 183294), (108, 173111), (153, 122196), (204, 91647), (289, 64692), (306, 61098), (459, 40732), (578, 32346), (599, 31212), (612, 30549), (867, 21564), (918, 20366), (1156, 16173), (1198, 15606), (1734, 10782), (1797, 10404), (1836, 10183), (2396, 7803), (2601, 7188), (3468, 5391), (3594, 5202)]