21117912440

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{6360817}}^1$

素因数の和:6360911

約数の個数: 32

約数和(自身を含む): 48087784080

約数和(自身を除く): 26969871640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 6360817, 12721634, 25443268, 31804085, 50886536, 63608170, 127216340, 254432680, 527947811, 1055895622, 2111791244, 2639739055, 4223582488, 5279478110, 10558956220, 21117912440]

約数ペア:

[(1, 21117912440), (2, 10558956220), (4, 5279478110), (5, 4223582488), (8, 2639739055), (10, 2111791244), (20, 1055895622), (40, 527947811), (83, 254432680), (166, 127216340), (332, 63608170), (415, 50886536), (664, 31804085), (830, 25443268), (1660, 12721634), (3320, 6360817)]