21210798

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:577

約数の個数: 64

約数和(自身を含む): 52282368

約数和(自身を除く): 31071570

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 61, 102, 119, 122, 183, 238, 357, 366, 427, 487, 714, 854, 974, 1037, 1281, 1461, 2074, 2562, 2922, 3111, 3409, 6222, 6818, 7259, 8279, 10227, 14518, 16558, 20454, 21777, 24837, 29707, 43554, 49674, 57953, 59414, 89121, 115906, 173859, 178242, 207949, 347718, 415898, 505019, 623847, 1010038, 1247694, 1515057, 3030114, 3535133, 7070266, 10605399, 21210798]

約数ペア:

[(1, 21210798), (2, 10605399), (3, 7070266), (6, 3535133), (7, 3030114), (14, 1515057), (17, 1247694), (21, 1010038), (34, 623847), (42, 505019), (51, 415898), (61, 347718), (102, 207949), (119, 178242), (122, 173859), (183, 115906), (238, 89121), (357, 59414), (366, 57953), (427, 49674), (487, 43554), (714, 29707), (854, 24837), (974, 21777), (1037, 20454), (1281, 16558), (1461, 14518), (2074, 10227), (2562, 8279), (2922, 7259), (3111, 6818), (3409, 6222)]