17986521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 29363200

約数和(自身を除く): 11376679

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 739, 1159, 1281, 2217, 3477, 5173, 8113, 14041, 15519, 24339, 42123, 45079, 98287, 135237, 294861, 315553, 856501, 946659, 2569503, 5995507, 17986521]

約数ペア:

[(1, 17986521), (3, 5995507), (7, 2569503), (19, 946659), (21, 856501), (57, 315553), (61, 294861), (133, 135237), (183, 98287), (399, 45079), (427, 42123), (739, 24339), (1159, 15519), (1281, 14041), (2217, 8113), (3477, 5173)]