21821086

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 39002112

約数和(自身を除く): 17181026

約数列:

[1, 2, 7, 14, 31, 62, 137, 217, 274, 367, 434, 734, 959, 1918, 2569, 4247, 5138, 8494, 11377, 22754, 29729, 50279, 59458, 79639, 100558, 159278, 351953, 703906, 1558649, 3117298, 10910543, 21821086]

約数ペア:

[(1, 21821086), (2, 10910543), (7, 3117298), (14, 1558649), (31, 703906), (62, 351953), (137, 159278), (217, 100558), (274, 79639), (367, 59458), (434, 50279), (734, 29729), (959, 22754), (1918, 11377), (2569, 8494), (4247, 5138)]