21921372

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 60972912

約数和(自身を除く): 39051540

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 197, 198, 281, 394, 396, 562, 591, 788, 843, 1124, 1182, 1686, 1773, 2167, 2364, 2529, 3091, 3372, 3546, 4334, 5058, 6182, 6501, 7092, 8668, 9273, 10116, 12364, 13002, 18546, 19503, 26004, 27819, 37092, 39006, 55357, 55638, 78012, 110714, 111276, 166071, 221428, 332142, 498213, 608927, 664284, 996426, 1217854, 1826781, 1992852, 2435708, 3653562, 5480343, 7307124, 10960686, 21921372]

約数ペア:

[(1, 21921372), (2, 10960686), (3, 7307124), (4, 5480343), (6, 3653562), (9, 2435708), (11, 1992852), (12, 1826781), (18, 1217854), (22, 996426), (33, 664284), (36, 608927), (44, 498213), (66, 332142), (99, 221428), (132, 166071), (197, 111276), (198, 110714), (281, 78012), (394, 55638), (396, 55357), (562, 39006), (591, 37092), (788, 27819), (843, 26004), (1124, 19503), (1182, 18546), (1686, 13002), (1773, 12364), (2167, 10116), (2364, 9273), (2529, 8668), (3091, 7092), (3372, 6501), (3546, 6182), (4334, 5058)]