21805890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8167}}^1$

素因数の和:8266

約数の個数: 32

約数和(自身を含む): 52928640

約数和(自身を除く): 31122750

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 8167, 16334, 24501, 40835, 49002, 81670, 122505, 245010, 726863, 1453726, 2180589, 3634315, 4361178, 7268630, 10902945, 21805890]

約数ペア:

[(1, 21805890), (2, 10902945), (3, 7268630), (5, 4361178), (6, 3634315), (10, 2180589), (15, 1453726), (30, 726863), (89, 245010), (178, 122505), (267, 81670), (445, 49002), (534, 40835), (890, 24501), (1335, 16334), (2670, 8167)]