19428990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13217}}^1$

素因数の和:13241

約数の個数: 48

約数和(自身を含む): 54246672

約数和(自身を除く): 34817682

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13217, 26434, 39651, 66085, 79302, 92519, 132170, 185038, 198255, 277557, 396510, 462595, 555114, 647633, 925190, 1295266, 1387785, 1942899, 2775570, 3238165, 3885798, 6476330, 9714495, 19428990]

約数ペア:

[(1, 19428990), (2, 9714495), (3, 6476330), (5, 3885798), (6, 3238165), (7, 2775570), (10, 1942899), (14, 1387785), (15, 1295266), (21, 925190), (30, 647633), (35, 555114), (42, 462595), (49, 396510), (70, 277557), (98, 198255), (105, 185038), (147, 132170), (210, 92519), (245, 79302), (294, 66085), (490, 39651), (735, 26434), (1470, 13217)]