21459276

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 38053044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 53, 54, 69, 92, 106, 108, 138, 159, 163, 207, 212, 276, 318, 326, 414, 477, 489, 621, 636, 652, 828, 954, 978, 1219, 1242, 1431, 1467, 1908, 1956, 2438, 2484, 2862, 2934, 3657, 3749, 4401, 4876, 5724, 5868, 7314, 7498, 8639, 8802, 10971, 11247, 14628, 14996, 17278, 17604, 21942, 22494, 25917, 32913, 33741, 34556, 43884, 44988, 51834, 65826, 67482, 77751, 101223, 103668, 131652, 134964, 155502, 198697, 202446, 233253, 311004, 397394, 404892, 466506, 596091, 794788, 933012, 1192182, 1788273, 2384364, 3576546, 5364819, 7153092, 10729638, 21459276]

約数ペア:

[(1, 21459276), (2, 10729638), (3, 7153092), (4, 5364819), (6, 3576546), (9, 2384364), (12, 1788273), (18, 1192182), (23, 933012), (27, 794788), (36, 596091), (46, 466506), (53, 404892), (54, 397394), (69, 311004), (92, 233253), (106, 202446), (108, 198697), (138, 155502), (159, 134964), (163, 131652), (207, 103668), (212, 101223), (276, 77751), (318, 67482), (326, 65826), (414, 51834), (477, 44988), (489, 43884), (621, 34556), (636, 33741), (652, 32913), (828, 25917), (954, 22494), (978, 21942), (1219, 17604), (1242, 17278), (1431, 14996), (1467, 14628), (1908, 11247), (1956, 10971), (2438, 8802), (2484, 8639), (2862, 7498), (2934, 7314), (3657, 5868), (3749, 5724), (4401, 4876)]