21959280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4357}}^1$

素因数の和:4383

約数の個数: 120

約数和(自身を含む): 84301152

約数和(自身を除く): 62341872

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4357, 5040, 8714, 13071, 17428, 21785, 26142, 30499, 34856, 39213, 43570, 52284, 60998, 65355, 69712, 78426, 87140, 91497, 104568, 121996, 130710, 152495, 156852, 174280, 182994, 196065, 209136, 243992, 261420, 274491, 304990, 313704, 348560, 365988, 392130, 457485, 487984, 522840, 548982, 609980, 627408, 731976, 784260, 914970, 1045680, 1097964, 1219960, 1372455, 1463952, 1568520, 1829940, 2195928, 2439920, 2744910, 3137040, 3659880, 4391856, 5489820, 7319760, 10979640, 21959280]

約数ペア:

[(1, 21959280), (2, 10979640), (3, 7319760), (4, 5489820), (5, 4391856), (6, 3659880), (7, 3137040), (8, 2744910), (9, 2439920), (10, 2195928), (12, 1829940), (14, 1568520), (15, 1463952), (16, 1372455), (18, 1219960), (20, 1097964), (21, 1045680), (24, 914970), (28, 784260), (30, 731976), (35, 627408), (36, 609980), (40, 548982), (42, 522840), (45, 487984), (48, 457485), (56, 392130), (60, 365988), (63, 348560), (70, 313704), (72, 304990), (80, 274491), (84, 261420), (90, 243992), (105, 209136), (112, 196065), (120, 182994), (126, 174280), (140, 156852), (144, 152495), (168, 130710), (180, 121996), (210, 104568), (240, 91497), (252, 87140), (280, 78426), (315, 69712), (336, 65355), (360, 60998), (420, 52284), (504, 43570), (560, 39213), (630, 34856), (720, 30499), (840, 26142), (1008, 21785), (1260, 17428), (1680, 13071), (2520, 8714), (4357, 5040)]