19977912

素因数分解:

$2^3\times 3^2\times {\mathrm{293}}^1\times {\mathrm{947}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 54348840

約数和(自身を除く): 34370928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 293, 586, 879, 947, 1172, 1758, 1894, 2344, 2637, 2841, 3516, 3788, 5274, 5682, 7032, 7576, 8523, 10548, 11364, 17046, 21096, 22728, 34092, 68184, 277471, 554942, 832413, 1109884, 1664826, 2219768, 2497239, 3329652, 4994478, 6659304, 9988956, 19977912]

約数ペア:

[(1, 19977912), (2, 9988956), (3, 6659304), (4, 4994478), (6, 3329652), (8, 2497239), (9, 2219768), (12, 1664826), (18, 1109884), (24, 832413), (36, 554942), (72, 277471), (293, 68184), (586, 34092), (879, 22728), (947, 21096), (1172, 17046), (1758, 11364), (1894, 10548), (2344, 8523), (2637, 7576), (2841, 7032), (3516, 5682), (3788, 5274)]