21535010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 45800640

約数和(自身を除く): 24265630

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 355, 490, 497, 619, 710, 994, 1238, 2485, 3095, 3479, 4333, 4970, 6190, 6958, 8666, 17395, 21665, 30331, 34790, 43330, 43949, 60662, 87898, 151655, 219745, 303310, 307643, 439490, 615286, 1538215, 2153501, 3076430, 4307002, 10767505, 21535010]

約数ペア:

[(1, 21535010), (2, 10767505), (5, 4307002), (7, 3076430), (10, 2153501), (14, 1538215), (35, 615286), (49, 439490), (70, 307643), (71, 303310), (98, 219745), (142, 151655), (245, 87898), (355, 60662), (490, 43949), (497, 43330), (619, 34790), (710, 30331), (994, 21665), (1238, 17395), (2485, 8666), (3095, 6958), (3479, 6190), (4333, 4970)]