21696318

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1447}}^1$

素因数の和:1486

約数の個数: 72

約数和(自身を含む): 57940272

約数和(自身を除く): 36243954

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 49, 51, 63, 98, 102, 119, 126, 147, 153, 238, 294, 306, 357, 441, 714, 833, 882, 1071, 1447, 1666, 2142, 2499, 2894, 4341, 4998, 7497, 8682, 10129, 13023, 14994, 20258, 24599, 26046, 30387, 49198, 60774, 70903, 73797, 91161, 141806, 147594, 172193, 182322, 212709, 221391, 344386, 425418, 442782, 516579, 638127, 1033158, 1205351, 1276254, 1549737, 2410702, 3099474, 3616053, 7232106, 10848159, 21696318]

約数ペア:

[(1, 21696318), (2, 10848159), (3, 7232106), (6, 3616053), (7, 3099474), (9, 2410702), (14, 1549737), (17, 1276254), (18, 1205351), (21, 1033158), (34, 638127), (42, 516579), (49, 442782), (51, 425418), (63, 344386), (98, 221391), (102, 212709), (119, 182322), (126, 172193), (147, 147594), (153, 141806), (238, 91161), (294, 73797), (306, 70903), (357, 60774), (441, 49198), (714, 30387), (833, 26046), (882, 24599), (1071, 20258), (1447, 14994), (1666, 13023), (2142, 10129), (2499, 8682), (2894, 7497), (4341, 4998)]