21520506

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{10457}}^1$

素因数の和:10483

約数の個数: 32

約数和(自身を含む): 50198400

約数和(自身を除く): 28677894

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 2058, 10457, 20914, 31371, 62742, 73199, 146398, 219597, 439194, 512393, 1024786, 1537179, 3074358, 3586751, 7173502, 10760253, 21520506]

約数ペア:

[(1, 21520506), (2, 10760253), (3, 7173502), (6, 3586751), (7, 3074358), (14, 1537179), (21, 1024786), (42, 512393), (49, 439194), (98, 219597), (147, 146398), (294, 73199), (343, 62742), (686, 31371), (1029, 20914), (2058, 10457)]