21650928

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 64536048

約数和(自身を除く): 42885120

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 48, 51, 52, 68, 78, 102, 104, 136, 156, 157, 169, 204, 208, 221, 272, 312, 314, 338, 408, 442, 471, 507, 624, 628, 663, 676, 816, 884, 942, 1014, 1256, 1326, 1352, 1768, 1884, 2028, 2041, 2512, 2652, 2669, 2704, 2873, 3536, 3768, 4056, 4082, 5304, 5338, 5746, 6123, 7536, 8007, 8112, 8164, 8619, 10608, 10676, 11492, 12246, 16014, 16328, 17238, 21352, 22984, 24492, 26533, 32028, 32656, 34476, 34697, 42704, 45968, 48984, 53066, 64056, 68952, 69394, 79599, 97968, 104091, 106132, 128112, 137904, 138788, 159198, 208182, 212264, 277576, 318396, 416364, 424528, 451061, 555152, 636792, 832728, 902122, 1273584, 1353183, 1665456, 1804244, 2706366, 3608488, 5412732, 7216976, 10825464, 21650928]

約数ペア:

[(1, 21650928), (2, 10825464), (3, 7216976), (4, 5412732), (6, 3608488), (8, 2706366), (12, 1804244), (13, 1665456), (16, 1353183), (17, 1273584), (24, 902122), (26, 832728), (34, 636792), (39, 555152), (48, 451061), (51, 424528), (52, 416364), (68, 318396), (78, 277576), (102, 212264), (104, 208182), (136, 159198), (156, 138788), (157, 137904), (169, 128112), (204, 106132), (208, 104091), (221, 97968), (272, 79599), (312, 69394), (314, 68952), (338, 64056), (408, 53066), (442, 48984), (471, 45968), (507, 42704), (624, 34697), (628, 34476), (663, 32656), (676, 32028), (816, 26533), (884, 24492), (942, 22984), (1014, 21352), (1256, 17238), (1326, 16328), (1352, 16014), (1768, 12246), (1884, 11492), (2028, 10676), (2041, 10608), (2512, 8619), (2652, 8164), (2669, 8112), (2704, 8007), (2873, 7536), (3536, 6123), (3768, 5746), (4056, 5338), (4082, 5304)]