20431908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1017

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 39322332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 89, 126, 178, 252, 267, 356, 534, 623, 801, 911, 1068, 1246, 1602, 1822, 1869, 2492, 2733, 3204, 3644, 3738, 5466, 5607, 6377, 7476, 8199, 10932, 11214, 12754, 16398, 19131, 22428, 25508, 32796, 38262, 57393, 76524, 81079, 114786, 162158, 229572, 243237, 324316, 486474, 567553, 729711, 972948, 1135106, 1459422, 1702659, 2270212, 2918844, 3405318, 5107977, 6810636, 10215954, 20431908]

約数ペア:

[(1, 20431908), (2, 10215954), (3, 6810636), (4, 5107977), (6, 3405318), (7, 2918844), (9, 2270212), (12, 1702659), (14, 1459422), (18, 1135106), (21, 972948), (28, 729711), (36, 567553), (42, 486474), (63, 324316), (84, 243237), (89, 229572), (126, 162158), (178, 114786), (252, 81079), (267, 76524), (356, 57393), (534, 38262), (623, 32796), (801, 25508), (911, 22428), (1068, 19131), (1246, 16398), (1602, 12754), (1822, 11214), (1869, 10932), (2492, 8199), (2733, 7476), (3204, 6377), (3644, 5607), (3738, 5466)]