21521358

素因数分解:

$2^1\times 3^2\times {\mathrm{503}}^1\times {\mathrm{2377}}^1$

素因数の和:2888

約数の個数: 24

約数和(自身を含む): 46741968

約数和(自身を除く): 25220610

約数列:

[1, 2, 3, 6, 9, 18, 503, 1006, 1509, 2377, 3018, 4527, 4754, 7131, 9054, 14262, 21393, 42786, 1195631, 2391262, 3586893, 7173786, 10760679, 21521358]

約数ペア:

[(1, 21521358), (2, 10760679), (3, 7173786), (6, 3586893), (9, 2391262), (18, 1195631), (503, 42786), (1006, 21393), (1509, 14262), (2377, 9054), (3018, 7131), (4527, 4754)]