19527728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{613}}^1$

素因数の和:813

約数の個数: 40

約数和(自身を含む): 41570256

約数和(自身を除く): 22042528

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 613, 724, 1226, 1448, 1991, 2452, 2896, 3982, 4904, 6743, 7964, 9808, 13486, 15928, 26972, 31856, 53944, 107888, 110953, 221906, 443812, 887624, 1220483, 1775248, 2440966, 4881932, 9763864, 19527728]

約数ペア:

[(1, 19527728), (2, 9763864), (4, 4881932), (8, 2440966), (11, 1775248), (16, 1220483), (22, 887624), (44, 443812), (88, 221906), (176, 110953), (181, 107888), (362, 53944), (613, 31856), (724, 26972), (1226, 15928), (1448, 13486), (1991, 9808), (2452, 7964), (2896, 6743), (3982, 4904)]