20997432

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15349}}^1$

素因数の和:15380

約数の個数: 48

約数和(自身を含む): 59865000

約数和(自身を除く): 38867568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15349, 30698, 46047, 61396, 92094, 122792, 138141, 184188, 276282, 291631, 368376, 552564, 583262, 874893, 1105128, 1166524, 1749786, 2333048, 2624679, 3499572, 5249358, 6999144, 10498716, 20997432]

約数ペア:

[(1, 20997432), (2, 10498716), (3, 6999144), (4, 5249358), (6, 3499572), (8, 2624679), (9, 2333048), (12, 1749786), (18, 1166524), (19, 1105128), (24, 874893), (36, 583262), (38, 552564), (57, 368376), (72, 291631), (76, 276282), (114, 184188), (152, 138141), (171, 122792), (228, 92094), (342, 61396), (456, 46047), (684, 30698), (1368, 15349)]