20475369

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11780631

約数列:

[1, 3, 9, 19, 27, 57, 167, 171, 239, 501, 513, 717, 1503, 2151, 3173, 4509, 4541, 6453, 9519, 13623, 28557, 39913, 40869, 85671, 119739, 122607, 359217, 758347, 1077651, 2275041, 6825123, 20475369]

約数ペア:

[(1, 20475369), (3, 6825123), (9, 2275041), (19, 1077651), (27, 758347), (57, 359217), (167, 122607), (171, 119739), (239, 85671), (501, 40869), (513, 39913), (717, 28557), (1503, 13623), (2151, 9519), (3173, 6453), (4509, 4541)]