20901558

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2\times {\mathrm{83}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 45501120

約数和(自身を除く): 24599562

約数列:

[1, 2, 3, 6, 19, 38, 47, 57, 83, 94, 114, 141, 166, 249, 282, 498, 893, 1577, 1786, 2209, 2679, 3154, 3901, 4418, 4731, 5358, 6627, 7802, 9462, 11703, 13254, 23406, 41971, 74119, 83942, 125913, 148238, 183347, 222357, 251826, 366694, 444714, 550041, 1100082, 3483593, 6967186, 10450779, 20901558]

約数ペア:

[(1, 20901558), (2, 10450779), (3, 6967186), (6, 3483593), (19, 1100082), (38, 550041), (47, 444714), (57, 366694), (83, 251826), (94, 222357), (114, 183347), (141, 148238), (166, 125913), (249, 83942), (282, 74119), (498, 41971), (893, 23406), (1577, 13254), (1786, 11703), (2209, 9462), (2679, 7802), (3154, 6627), (3901, 5358), (4418, 4731)]