21587340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15643}}^1$

素因数の和:15678

約数の個数: 48

約数和(自身を含む): 63076608

約数和(自身を除く): 41489268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15643, 31286, 46929, 62572, 78215, 93858, 156430, 187716, 234645, 312860, 359789, 469290, 719578, 938580, 1079367, 1439156, 1798945, 2158734, 3597890, 4317468, 5396835, 7195780, 10793670, 21587340]

約数ペア:

[(1, 21587340), (2, 10793670), (3, 7195780), (4, 5396835), (5, 4317468), (6, 3597890), (10, 2158734), (12, 1798945), (15, 1439156), (20, 1079367), (23, 938580), (30, 719578), (46, 469290), (60, 359789), (69, 312860), (92, 234645), (115, 187716), (138, 156430), (230, 93858), (276, 78215), (345, 62572), (460, 46929), (690, 31286), (1380, 15643)]