21449688

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68749}}^1$

素因数の和:68771

約数の個数: 32

約数和(自身を含む): 57750000

約数和(自身を除く): 36300312

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68749, 137498, 206247, 274996, 412494, 549992, 824988, 893737, 1649976, 1787474, 2681211, 3574948, 5362422, 7149896, 10724844, 21449688]

約数ペア:

[(1, 21449688), (2, 10724844), (3, 7149896), (4, 5362422), (6, 3574948), (8, 2681211), (12, 1787474), (13, 1649976), (24, 893737), (26, 824988), (39, 549992), (52, 412494), (78, 274996), (104, 206247), (156, 137498), (312, 68749)]