18988554

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7853}}^1$

素因数の和:7902

約数の個数: 32

約数和(自身を含む): 42223104

約数和(自身を除く): 23234550

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 7853, 15706, 23559, 47118, 102089, 204178, 243443, 306267, 486886, 612534, 730329, 1460658, 3164759, 6329518, 9494277, 18988554]

約数ペア:

[(1, 18988554), (2, 9494277), (3, 6329518), (6, 3164759), (13, 1460658), (26, 730329), (31, 612534), (39, 486886), (62, 306267), (78, 243443), (93, 204178), (186, 102089), (403, 47118), (806, 23559), (1209, 15706), (2418, 7853)]