21428694

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8951}}^1$

素因数の和:8985

約数の個数: 48

約数和(自身を含む): 55860480

約数和(自身を除く): 34431786

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 399, 798, 1197, 2394, 8951, 17902, 26853, 53706, 62657, 80559, 125314, 161118, 170069, 187971, 340138, 375942, 510207, 563913, 1020414, 1127826, 1190483, 1530621, 2380966, 3061242, 3571449, 7142898, 10714347, 21428694]

約数ペア:

[(1, 21428694), (2, 10714347), (3, 7142898), (6, 3571449), (7, 3061242), (9, 2380966), (14, 1530621), (18, 1190483), (19, 1127826), (21, 1020414), (38, 563913), (42, 510207), (57, 375942), (63, 340138), (114, 187971), (126, 170069), (133, 161118), (171, 125314), (266, 80559), (342, 62657), (399, 53706), (798, 26853), (1197, 17902), (2394, 8951)]