28721238

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1349

約数の個数: 64

約数和(自身を含む): 72479232

約数和(自身を除く): 43757994

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 78, 82, 91, 123, 182, 246, 273, 287, 533, 546, 574, 861, 1066, 1283, 1599, 1722, 2566, 3198, 3731, 3849, 7462, 7698, 8981, 11193, 16679, 17962, 22386, 26943, 33358, 50037, 52603, 53886, 100074, 105206, 116753, 157809, 233506, 315618, 350259, 368221, 683839, 700518, 736442, 1104663, 1367678, 2051517, 2209326, 4103034, 4786873, 9573746, 14360619, 28721238]

約数ペア:

[(1, 28721238), (2, 14360619), (3, 9573746), (6, 4786873), (7, 4103034), (13, 2209326), (14, 2051517), (21, 1367678), (26, 1104663), (39, 736442), (41, 700518), (42, 683839), (78, 368221), (82, 350259), (91, 315618), (123, 233506), (182, 157809), (246, 116753), (273, 105206), (287, 100074), (533, 53886), (546, 52603), (574, 50037), (861, 33358), (1066, 26943), (1283, 22386), (1599, 17962), (1722, 16679), (2566, 11193), (3198, 8981), (3731, 7698), (3849, 7462)]