21199144435

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1\times {\mathrm{21001}}^1$

素因数の和:21355

約数の個数: 32

約数和(自身を含む): 29420273664

約数和(自身を除く): 8221129229

約数列:

[1, 5, 7, 35, 151, 191, 755, 955, 1057, 1337, 5285, 6685, 21001, 28841, 105005, 144205, 147007, 201887, 735035, 1009435, 3171151, 4011191, 15855755, 20055955, 22198057, 28078337, 110990285, 140391685, 605689841, 3028449205, 4239828887, 21199144435]

約数ペア:

[(1, 21199144435), (5, 4239828887), (7, 3028449205), (35, 605689841), (151, 140391685), (191, 110990285), (755, 28078337), (955, 22198057), (1057, 20055955), (1337, 15855755), (5285, 4011191), (6685, 3171151), (21001, 1009435), (28841, 735035), (105005, 201887), (144205, 147007)]