20871942

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 53932032

約数和(自身を除く): 33060090

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 43, 49, 78, 86, 91, 98, 127, 129, 147, 182, 254, 258, 273, 294, 301, 381, 546, 559, 602, 637, 762, 889, 903, 1118, 1274, 1651, 1677, 1778, 1806, 1911, 2107, 2667, 3302, 3354, 3822, 3913, 4214, 4953, 5334, 5461, 6223, 6321, 7826, 9906, 10922, 11557, 11739, 12446, 12642, 16383, 18669, 23114, 23478, 27391, 32766, 34671, 37338, 38227, 54782, 69342, 70993, 76454, 80899, 82173, 114681, 141986, 161798, 164346, 212979, 229362, 242697, 267589, 425958, 485394, 496951, 535178, 802767, 993902, 1490853, 1605534, 2981706, 3478657, 6957314, 10435971, 20871942]

約数ペア:

[(1, 20871942), (2, 10435971), (3, 6957314), (6, 3478657), (7, 2981706), (13, 1605534), (14, 1490853), (21, 993902), (26, 802767), (39, 535178), (42, 496951), (43, 485394), (49, 425958), (78, 267589), (86, 242697), (91, 229362), (98, 212979), (127, 164346), (129, 161798), (147, 141986), (182, 114681), (254, 82173), (258, 80899), (273, 76454), (294, 70993), (301, 69342), (381, 54782), (546, 38227), (559, 37338), (602, 34671), (637, 32766), (762, 27391), (889, 23478), (903, 23114), (1118, 18669), (1274, 16383), (1651, 12642), (1677, 12446), (1778, 11739), (1806, 11557), (1911, 10922), (2107, 9906), (2667, 7826), (3302, 6321), (3354, 6223), (3822, 5461), (3913, 5334), (4214, 4953)]