18111772

素因数分解:

$2^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 37945600

約数和(自身を除く): 19833828

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 307, 343, 602, 614, 686, 1204, 1228, 1372, 2107, 2149, 4214, 4298, 8428, 8596, 13201, 14749, 15043, 26402, 29498, 30086, 52804, 58996, 60172, 92407, 105301, 184814, 210602, 369628, 421204, 646849, 1293698, 2587396, 4527943, 9055886, 18111772]

約数ペア:

[(1, 18111772), (2, 9055886), (4, 4527943), (7, 2587396), (14, 1293698), (28, 646849), (43, 421204), (49, 369628), (86, 210602), (98, 184814), (172, 105301), (196, 92407), (301, 60172), (307, 58996), (343, 52804), (602, 30086), (614, 29498), (686, 26402), (1204, 15043), (1228, 14749), (1372, 13201), (2107, 8596), (2149, 8428), (4214, 4298)]