20451180477

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1\times {\mathrm{46271}}^1$

素因数の和:47913

約数の個数: 32

約数和(自身を含む): 33582366720

約数和(自身を除く): 13131186243

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 1619, 4857, 11333, 21047, 33999, 46271, 63141, 138813, 147329, 323897, 441987, 601523, 971691, 1804569, 4210661, 12631983, 74912749, 224738247, 524389243, 973865737, 1573167729, 2921597211, 6817060159, 20451180477]

約数ペア:

[(1, 20451180477), (3, 6817060159), (7, 2921597211), (13, 1573167729), (21, 973865737), (39, 524389243), (91, 224738247), (273, 74912749), (1619, 12631983), (4857, 4210661), (11333, 1804569), (21047, 971691), (33999, 601523), (46271, 441987), (63141, 323897), (138813, 147329)]