21998256

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:271

約数の個数: 120

約数和(自身を含む): 67852800

約数和(自身を除く): 45854544

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 47, 48, 49, 56, 84, 94, 98, 112, 141, 147, 168, 188, 196, 199, 282, 294, 329, 336, 376, 392, 398, 564, 588, 597, 658, 752, 784, 796, 987, 1128, 1176, 1194, 1316, 1393, 1592, 1974, 2256, 2303, 2352, 2388, 2632, 2786, 3184, 3948, 4179, 4606, 4776, 5264, 5572, 6909, 7896, 8358, 9212, 9353, 9552, 9751, 11144, 13818, 15792, 16716, 18424, 18706, 19502, 22288, 27636, 28059, 29253, 33432, 36848, 37412, 39004, 55272, 56118, 58506, 65471, 66864, 74824, 78008, 110544, 112236, 117012, 130942, 149648, 156016, 196413, 224472, 234024, 261884, 392826, 448944, 458297, 468048, 523768, 785652, 916594, 1047536, 1374891, 1571304, 1833188, 2749782, 3142608, 3666376, 5499564, 7332752, 10999128, 21998256]

約数ペア:

[(1, 21998256), (2, 10999128), (3, 7332752), (4, 5499564), (6, 3666376), (7, 3142608), (8, 2749782), (12, 1833188), (14, 1571304), (16, 1374891), (21, 1047536), (24, 916594), (28, 785652), (42, 523768), (47, 468048), (48, 458297), (49, 448944), (56, 392826), (84, 261884), (94, 234024), (98, 224472), (112, 196413), (141, 156016), (147, 149648), (168, 130942), (188, 117012), (196, 112236), (199, 110544), (282, 78008), (294, 74824), (329, 66864), (336, 65471), (376, 58506), (392, 56118), (398, 55272), (564, 39004), (588, 37412), (597, 36848), (658, 33432), (752, 29253), (784, 28059), (796, 27636), (987, 22288), (1128, 19502), (1176, 18706), (1194, 18424), (1316, 16716), (1393, 15792), (1592, 13818), (1974, 11144), (2256, 9751), (2303, 9552), (2352, 9353), (2388, 9212), (2632, 8358), (2786, 7896), (3184, 6909), (3948, 5572), (4179, 5264), (4606, 4776)]