21519146

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15252694

約数列:

[1, 2, 11, 22, 31, 62, 139, 227, 278, 341, 454, 682, 1529, 2497, 3058, 4309, 4994, 7037, 8618, 14074, 31553, 47399, 63106, 77407, 94798, 154814, 347083, 694166, 978143, 1956286, 10759573, 21519146]

約数ペア:

[(1, 21519146), (2, 10759573), (11, 1956286), (22, 978143), (31, 694166), (62, 347083), (139, 154814), (227, 94798), (278, 77407), (341, 63106), (454, 47399), (682, 31553), (1529, 14074), (2497, 8618), (3058, 7037), (4309, 4994)]