21414729

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 34652160

約数和(自身を除く): 13237431

約数列:

[1, 3, 7, 19, 21, 57, 133, 191, 281, 399, 573, 843, 1337, 1967, 3629, 4011, 5339, 5901, 10887, 16017, 25403, 37373, 53671, 76209, 112119, 161013, 375697, 1019749, 1127091, 3059247, 7138243, 21414729]

約数ペア:

[(1, 21414729), (3, 7138243), (7, 3059247), (19, 1127091), (21, 1019749), (57, 375697), (133, 161013), (191, 112119), (281, 76209), (399, 53671), (573, 37373), (843, 25403), (1337, 16017), (1967, 10887), (3629, 5901), (4011, 5339)]