21069198639

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{42689}}^1$

素因数の和:42816

約数の個数: 48

約数和(自身を含む): 33031814400

約数和(自身を除く): 11962615761

約数列:

[1, 3, 9, 29, 31, 61, 87, 93, 183, 261, 279, 549, 899, 1769, 1891, 2697, 5307, 5673, 8091, 15921, 17019, 42689, 54839, 128067, 164517, 384201, 493551, 1237981, 1323359, 2604029, 3713943, 3970077, 7812087, 11141829, 11910231, 23436261, 38377411, 75516841, 80724899, 115132233, 226550523, 242174697, 345396699, 679651569, 726524091, 2341022071, 7023066213, 21069198639]

約数ペア:

[(1, 21069198639), (3, 7023066213), (9, 2341022071), (29, 726524091), (31, 679651569), (61, 345396699), (87, 242174697), (93, 226550523), (183, 115132233), (261, 80724899), (279, 75516841), (549, 38377411), (899, 23436261), (1769, 11910231), (1891, 11141829), (2697, 7812087), (5307, 3970077), (5673, 3713943), (8091, 2604029), (15921, 1323359), (17019, 1237981), (42689, 493551), (54839, 384201), (128067, 164517)]