16721930

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 31069440

約数和(自身を除く): 14347510

約数列:

[1, 2, 5, 10, 61, 79, 122, 158, 305, 347, 395, 610, 694, 790, 1735, 3470, 4819, 9638, 21167, 24095, 27413, 42334, 48190, 54826, 105835, 137065, 211670, 274130, 1672193, 3344386, 8360965, 16721930]

約数ペア:

[(1, 16721930), (2, 8360965), (5, 3344386), (10, 1672193), (61, 274130), (79, 211670), (122, 137065), (158, 105835), (305, 54826), (347, 48190), (395, 42334), (610, 27413), (694, 24095), (790, 21167), (1735, 9638), (3470, 4819)]