21630042

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 34979238

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 53, 63, 79, 82, 106, 123, 126, 158, 159, 237, 246, 287, 318, 369, 371, 474, 477, 553, 574, 711, 738, 742, 861, 954, 1106, 1113, 1422, 1659, 1722, 2173, 2226, 2583, 3239, 3318, 3339, 4187, 4346, 4977, 5166, 6478, 6519, 6678, 8374, 9717, 9954, 12561, 13038, 15211, 19434, 19557, 22673, 25122, 29151, 29309, 30422, 37683, 39114, 45346, 45633, 58302, 58618, 68019, 75366, 87927, 91266, 136038, 136899, 171667, 175854, 204057, 263781, 273798, 343334, 408114, 515001, 527562, 1030002, 1201669, 1545003, 2403338, 3090006, 3605007, 7210014, 10815021, 21630042]

約数ペア:

[(1, 21630042), (2, 10815021), (3, 7210014), (6, 3605007), (7, 3090006), (9, 2403338), (14, 1545003), (18, 1201669), (21, 1030002), (41, 527562), (42, 515001), (53, 408114), (63, 343334), (79, 273798), (82, 263781), (106, 204057), (123, 175854), (126, 171667), (158, 136899), (159, 136038), (237, 91266), (246, 87927), (287, 75366), (318, 68019), (369, 58618), (371, 58302), (474, 45633), (477, 45346), (553, 39114), (574, 37683), (711, 30422), (738, 29309), (742, 29151), (861, 25122), (954, 22673), (1106, 19557), (1113, 19434), (1422, 15211), (1659, 13038), (1722, 12561), (2173, 9954), (2226, 9717), (2583, 8374), (3239, 6678), (3318, 6519), (3339, 6478), (4187, 5166), (4346, 4977)]