1397188107

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{991}}^1$

素因数の和:1173

約数の個数: 72

約数和(自身を含む): 2469841920

約数和(自身を除く): 1072653813

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 139, 147, 161, 207, 417, 441, 483, 973, 991, 1127, 1251, 1449, 2919, 2973, 3197, 3381, 6811, 6937, 8757, 8919, 9591, 10143, 20433, 20811, 22379, 22793, 28773, 48559, 61299, 62433, 67137, 68379, 137749, 145677, 156653, 159551, 201411, 205137, 413247, 437031, 469959, 478653, 964243, 1116857, 1239741, 1409877, 1435959, 2892729, 3168227, 3350571, 6749701, 8678187, 9504681, 10051713, 20249103, 22177589, 28514043, 60747309, 66532767, 155243123, 199598301, 465729369, 1397188107]

約数ペア:

[(1, 1397188107), (3, 465729369), (7, 199598301), (9, 155243123), (21, 66532767), (23, 60747309), (49, 28514043), (63, 22177589), (69, 20249103), (139, 10051713), (147, 9504681), (161, 8678187), (207, 6749701), (417, 3350571), (441, 3168227), (483, 2892729), (973, 1435959), (991, 1409877), (1127, 1239741), (1251, 1116857), (1449, 964243), (2919, 478653), (2973, 469959), (3197, 437031), (3381, 413247), (6811, 205137), (6937, 201411), (8757, 159551), (8919, 156653), (9591, 145677), (10143, 137749), (20433, 68379), (20811, 67137), (22379, 62433), (22793, 61299), (28773, 48559)]