19642701

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 31306176

約数和(自身を除く): 11663475

約数列:

[1, 3, 13, 17, 39, 43, 51, 53, 129, 159, 169, 221, 507, 559, 663, 689, 731, 901, 1677, 2067, 2193, 2279, 2703, 2873, 6837, 7267, 8619, 8957, 9503, 11713, 21801, 26871, 28509, 29627, 35139, 38743, 88881, 116229, 123539, 152269, 370617, 385151, 456807, 503659, 1155453, 1510977, 6547567, 19642701]

約数ペア:

[(1, 19642701), (3, 6547567), (13, 1510977), (17, 1155453), (39, 503659), (43, 456807), (51, 385151), (53, 370617), (129, 152269), (159, 123539), (169, 116229), (221, 88881), (507, 38743), (559, 35139), (663, 29627), (689, 28509), (731, 26871), (901, 21801), (1677, 11713), (2067, 9503), (2193, 8957), (2279, 8619), (2703, 7267), (2873, 6837)]