18683888

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:705

約数の個数: 40

約数和(自身を含む): 38070480

約数和(自身を除く): 19386592

約数列:

[1, 2, 4, 8, 16, 29, 58, 67, 116, 134, 232, 268, 464, 536, 601, 1072, 1202, 1943, 2404, 3886, 4808, 7772, 9616, 15544, 17429, 31088, 34858, 40267, 69716, 80534, 139432, 161068, 278864, 322136, 644272, 1167743, 2335486, 4670972, 9341944, 18683888]

約数ペア:

[(1, 18683888), (2, 9341944), (4, 4670972), (8, 2335486), (16, 1167743), (29, 644272), (58, 322136), (67, 278864), (116, 161068), (134, 139432), (232, 80534), (268, 69716), (464, 40267), (536, 34858), (601, 31088), (1072, 17429), (1202, 15544), (1943, 9616), (2404, 7772), (3886, 4808)]