20345886

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{487}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 48417408

約数和(自身を除く): 28071522

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 211, 422, 487, 633, 974, 1266, 1461, 1899, 2321, 2922, 3798, 4383, 4642, 5357, 6963, 8766, 10714, 13926, 16071, 20889, 32142, 41778, 48213, 96426, 102757, 205514, 308271, 616542, 924813, 1130327, 1849626, 2260654, 3390981, 6781962, 10172943, 20345886]

約数ペア:

[(1, 20345886), (2, 10172943), (3, 6781962), (6, 3390981), (9, 2260654), (11, 1849626), (18, 1130327), (22, 924813), (33, 616542), (66, 308271), (99, 205514), (198, 102757), (211, 96426), (422, 48213), (487, 41778), (633, 32142), (974, 20889), (1266, 16071), (1461, 13926), (1899, 10714), (2321, 8766), (2922, 6963), (3798, 5357), (4383, 4642)]