28621908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 84284928

約数和(自身を除く): 55663020

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1908, 2143, 2226, 3339, 4286, 4452, 6429, 6678, 8572, 12858, 13356, 15001, 19287, 25716, 30002, 38574, 45003, 60004, 77148, 90006, 113579, 135009, 180012, 227158, 270018, 340737, 454316, 540036, 681474, 795053, 1022211, 1362948, 1590106, 2044422, 2385159, 3180212, 4088844, 4770318, 7155477, 9540636, 14310954, 28621908]

約数ペア:

[(1, 28621908), (2, 14310954), (3, 9540636), (4, 7155477), (6, 4770318), (7, 4088844), (9, 3180212), (12, 2385159), (14, 2044422), (18, 1590106), (21, 1362948), (28, 1022211), (36, 795053), (42, 681474), (53, 540036), (63, 454316), (84, 340737), (106, 270018), (126, 227158), (159, 180012), (212, 135009), (252, 113579), (318, 90006), (371, 77148), (477, 60004), (636, 45003), (742, 38574), (954, 30002), (1113, 25716), (1484, 19287), (1908, 15001), (2143, 13356), (2226, 12858), (3339, 8572), (4286, 6678), (4452, 6429)]