21000859184

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{983}}^1\times {\mathrm{12479}}^1$

素因数の和:13577

約数の個数: 40

約数和(自身を含む): 41114511360

約数和(自身を除く): 20113652176

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 983, 1712, 1966, 3932, 7864, 12479, 15728, 24958, 49916, 99832, 105181, 199664, 210362, 420724, 841448, 1335253, 1682896, 2670506, 5341012, 10682024, 12266857, 21364048, 24533714, 49067428, 98134856, 196269712, 1312553699, 2625107398, 5250214796, 10500429592, 21000859184]

約数ペア:

[(1, 21000859184), (2, 10500429592), (4, 5250214796), (8, 2625107398), (16, 1312553699), (107, 196269712), (214, 98134856), (428, 49067428), (856, 24533714), (983, 21364048), (1712, 12266857), (1966, 10682024), (3932, 5341012), (7864, 2670506), (12479, 1682896), (15728, 1335253), (24958, 841448), (49916, 420724), (99832, 210362), (105181, 199664)]