21390852

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{5197}}^1$

素因数の和:5225

約数の個数: 48

約数和(自身を含む): 58217600

約数和(自身を除く): 36826748

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 5197, 10394, 15591, 20788, 31182, 36379, 62364, 72758, 109137, 145516, 218274, 254653, 436548, 509306, 763959, 1018612, 1527918, 1782571, 3055836, 3565142, 5347713, 7130284, 10695426, 21390852]

約数ペア:

[(1, 21390852), (2, 10695426), (3, 7130284), (4, 5347713), (6, 3565142), (7, 3055836), (12, 1782571), (14, 1527918), (21, 1018612), (28, 763959), (42, 509306), (49, 436548), (84, 254653), (98, 218274), (147, 145516), (196, 109137), (294, 72758), (343, 62364), (588, 36379), (686, 31182), (1029, 20788), (1372, 15591), (2058, 10394), (4116, 5197)]