19451215

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 28302336

約数和(自身を除く): 8851121

約数列:

[1, 5, 7, 23, 35, 73, 115, 161, 331, 365, 511, 805, 1655, 1679, 2317, 2555, 7613, 8395, 11585, 11753, 24163, 38065, 53291, 58765, 120815, 169141, 266455, 555749, 845705, 2778745, 3890243, 19451215]

約数ペア:

[(1, 19451215), (5, 3890243), (7, 2778745), (23, 845705), (35, 555749), (73, 266455), (115, 169141), (161, 120815), (331, 58765), (365, 53291), (511, 38065), (805, 24163), (1655, 11753), (1679, 11585), (2317, 8395), (2555, 7613)]