21803103

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 38578176

約数和(自身を除く): 16775073

約数列:

[1, 3, 7, 9, 21, 23, 41, 63, 69, 123, 161, 207, 287, 367, 369, 483, 861, 943, 1101, 1449, 2569, 2583, 2829, 3303, 6601, 7707, 8441, 8487, 15047, 19803, 23121, 25323, 45141, 59087, 59409, 75969, 105329, 135423, 177261, 315987, 346081, 531783, 947961, 1038243, 2422567, 3114729, 7267701, 21803103]

約数ペア:

[(1, 21803103), (3, 7267701), (7, 3114729), (9, 2422567), (21, 1038243), (23, 947961), (41, 531783), (63, 346081), (69, 315987), (123, 177261), (161, 135423), (207, 105329), (287, 75969), (367, 59409), (369, 59087), (483, 45141), (861, 25323), (943, 23121), (1101, 19803), (1449, 15047), (2569, 8487), (2583, 8441), (2829, 7707), (3303, 6601)]