19511728

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1433}}^1$

素因数の和:1501

約数の個数: 40

約数和(自身を含む): 40542048

約数和(自身を除く): 21030320

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1433, 1702, 2866, 3404, 5732, 6808, 11464, 13616, 22928, 32959, 53021, 65918, 106042, 131836, 212084, 263672, 424168, 527344, 848336, 1219483, 2438966, 4877932, 9755864, 19511728]

約数ペア:

[(1, 19511728), (2, 9755864), (4, 4877932), (8, 2438966), (16, 1219483), (23, 848336), (37, 527344), (46, 424168), (74, 263672), (92, 212084), (148, 131836), (184, 106042), (296, 65918), (368, 53021), (592, 32959), (851, 22928), (1433, 13616), (1702, 11464), (2866, 6808), (3404, 5732)]