21406730

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1847}}^1$

素因数の和:1934

約数の個数: 32

約数和(自身を含む): 41247360

約数和(自身を除く): 19840630

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1847, 2318, 3694, 5795, 9235, 11590, 18470, 35093, 70186, 112667, 175465, 225334, 350930, 563335, 1126670, 2140673, 4281346, 10703365, 21406730]

約数ペア:

[(1, 21406730), (2, 10703365), (5, 4281346), (10, 2140673), (19, 1126670), (38, 563335), (61, 350930), (95, 225334), (122, 175465), (190, 112667), (305, 70186), (610, 35093), (1159, 18470), (1847, 11590), (2318, 9235), (3694, 5795)]