21103040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9421}}^1$

素因数の和:9445

約数の個数: 56

約数和(自身を含む): 57436512

約数和(自身を除く): 36333472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9421, 18842, 37684, 47105, 65947, 75368, 94210, 131894, 150736, 188420, 263788, 301472, 329735, 376840, 527576, 602944, 659470, 753680, 1055152, 1318940, 1507360, 2110304, 2637880, 3014720, 4220608, 5275760, 10551520, 21103040]

約数ペア:

[(1, 21103040), (2, 10551520), (4, 5275760), (5, 4220608), (7, 3014720), (8, 2637880), (10, 2110304), (14, 1507360), (16, 1318940), (20, 1055152), (28, 753680), (32, 659470), (35, 602944), (40, 527576), (56, 376840), (64, 329735), (70, 301472), (80, 263788), (112, 188420), (140, 150736), (160, 131894), (224, 94210), (280, 75368), (320, 65947), (448, 47105), (560, 37684), (1120, 18842), (2240, 9421)]