19867424

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{619}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 22317376

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 59, 68, 118, 136, 236, 272, 472, 544, 619, 944, 1003, 1238, 1888, 2006, 2476, 4012, 4952, 8024, 9904, 10523, 16048, 19808, 21046, 32096, 36521, 42092, 73042, 84184, 146084, 168368, 292168, 336736, 584336, 620857, 1168672, 1241714, 2483428, 4966856, 9933712, 19867424]

約数ペア:

[(1, 19867424), (2, 9933712), (4, 4966856), (8, 2483428), (16, 1241714), (17, 1168672), (32, 620857), (34, 584336), (59, 336736), (68, 292168), (118, 168368), (136, 146084), (236, 84184), (272, 73042), (472, 42092), (544, 36521), (619, 32096), (944, 21046), (1003, 19808), (1238, 16048), (1888, 10523), (2006, 9904), (2476, 8024), (4012, 4952)]