21872984

素因数分解:

$2^3\times 7^1\times {\mathrm{619}}^1\times {\mathrm{631}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 47020800

約数和(自身を除く): 25147816

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 619, 631, 1238, 1262, 2476, 2524, 4333, 4417, 4952, 5048, 8666, 8834, 17332, 17668, 34664, 35336, 390589, 781178, 1562356, 2734123, 3124712, 5468246, 10936492, 21872984]

約数ペア:

[(1, 21872984), (2, 10936492), (4, 5468246), (7, 3124712), (8, 2734123), (14, 1562356), (28, 781178), (56, 390589), (619, 35336), (631, 34664), (1238, 17668), (1262, 17332), (2476, 8834), (2524, 8666), (4333, 5048), (4417, 4952)]