21722778

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2239}}^1$

素因数の和:2272

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 38031462

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 49, 63, 66, 77, 98, 99, 126, 147, 154, 198, 231, 294, 441, 462, 539, 693, 882, 1078, 1386, 1617, 2239, 3234, 4478, 4851, 6717, 9702, 13434, 15673, 20151, 24629, 31346, 40302, 47019, 49258, 73887, 94038, 109711, 141057, 147774, 172403, 219422, 221661, 282114, 329133, 344806, 443322, 517209, 658266, 987399, 1034418, 1206821, 1551627, 1974798, 2413642, 3103254, 3620463, 7240926, 10861389, 21722778]

約数ペア:

[(1, 21722778), (2, 10861389), (3, 7240926), (6, 3620463), (7, 3103254), (9, 2413642), (11, 1974798), (14, 1551627), (18, 1206821), (21, 1034418), (22, 987399), (33, 658266), (42, 517209), (49, 443322), (63, 344806), (66, 329133), (77, 282114), (98, 221661), (99, 219422), (126, 172403), (147, 147774), (154, 141057), (198, 109711), (231, 94038), (294, 73887), (441, 49258), (462, 47019), (539, 40302), (693, 31346), (882, 24629), (1078, 20151), (1386, 15673), (1617, 13434), (2239, 9702), (3234, 6717), (4478, 4851)]