21386538

素因数分解:

$2^1\times 3^3\times {\mathrm{211}}^1\times {\mathrm{1877}}^1$

素因数の和:2099

約数の個数: 32

約数和(自身を含む): 47776320

約数和(自身を除く): 26389782

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 211, 422, 633, 1266, 1877, 1899, 3754, 3798, 5631, 5697, 11262, 11394, 16893, 33786, 50679, 101358, 396047, 792094, 1188141, 2376282, 3564423, 7128846, 10693269, 21386538]

約数ペア:

[(1, 21386538), (2, 10693269), (3, 7128846), (6, 3564423), (9, 2376282), (18, 1188141), (27, 792094), (54, 396047), (211, 101358), (422, 50679), (633, 33786), (1266, 16893), (1877, 11394), (1899, 11262), (3754, 5697), (3798, 5631)]