21891114

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1997}}^1$

素因数の和:2044

約数の個数: 64

約数和(自身を含む): 57542400

約数和(自身を除く): 35651286

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 54, 58, 63, 87, 126, 174, 189, 203, 261, 378, 406, 522, 609, 783, 1218, 1566, 1827, 1997, 3654, 3994, 5481, 5991, 10962, 11982, 13979, 17973, 27958, 35946, 41937, 53919, 57913, 83874, 107838, 115826, 125811, 173739, 251622, 347478, 377433, 405391, 521217, 754866, 810782, 1042434, 1216173, 1563651, 2432346, 3127302, 3648519, 7297038, 10945557, 21891114]

約数ペア:

[(1, 21891114), (2, 10945557), (3, 7297038), (6, 3648519), (7, 3127302), (9, 2432346), (14, 1563651), (18, 1216173), (21, 1042434), (27, 810782), (29, 754866), (42, 521217), (54, 405391), (58, 377433), (63, 347478), (87, 251622), (126, 173739), (174, 125811), (189, 115826), (203, 107838), (261, 83874), (378, 57913), (406, 53919), (522, 41937), (609, 35946), (783, 27958), (1218, 17973), (1566, 13979), (1827, 11982), (1997, 10962), (3654, 5991), (3994, 5481)]