20672883

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1297}}^1$

素因数の和:1344

約数の個数: 48

約数和(自身を含む): 38877696

約数和(自身を除く): 18204813

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 63, 69, 77, 99, 161, 207, 231, 253, 483, 693, 759, 1297, 1449, 1771, 2277, 3891, 5313, 9079, 11673, 14267, 15939, 27237, 29831, 42801, 81711, 89493, 99869, 128403, 208817, 268479, 299607, 328141, 626451, 898821, 984423, 1879353, 2296987, 2953269, 6890961, 20672883]

約数ペア:

[(1, 20672883), (3, 6890961), (7, 2953269), (9, 2296987), (11, 1879353), (21, 984423), (23, 898821), (33, 626451), (63, 328141), (69, 299607), (77, 268479), (99, 208817), (161, 128403), (207, 99869), (231, 89493), (253, 81711), (483, 42801), (693, 29831), (759, 27237), (1297, 15939), (1449, 14267), (1771, 11673), (2277, 9079), (3891, 5313)]