20403873

素因数分解:

$3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1213}}^1$

素因数の和:1318

約数の個数: 32

約数和(自身を含む): 34963200

約数和(自身を除く): 14559327

約数列:

[1, 3, 7, 9, 21, 27, 63, 89, 189, 267, 623, 801, 1213, 1869, 2403, 3639, 5607, 8491, 10917, 16821, 25473, 32751, 76419, 107957, 229257, 323871, 755699, 971613, 2267097, 2914839, 6801291, 20403873]

約数ペア:

[(1, 20403873), (3, 6801291), (7, 2914839), (9, 2267097), (21, 971613), (27, 755699), (63, 323871), (89, 229257), (189, 107957), (267, 76419), (623, 32751), (801, 25473), (1213, 16821), (1869, 10917), (2403, 8491), (3639, 5607)]