21203616

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:386

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 43147104

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 139, 168, 224, 227, 278, 336, 417, 454, 556, 672, 681, 834, 908, 973, 1112, 1362, 1589, 1668, 1816, 1946, 2224, 2724, 2919, 3178, 3336, 3632, 3892, 4448, 4767, 5448, 5838, 6356, 6672, 7264, 7784, 9534, 10896, 11676, 12712, 13344, 15568, 19068, 21792, 23352, 25424, 31136, 31553, 38136, 46704, 50848, 63106, 76272, 93408, 94659, 126212, 152544, 189318, 220871, 252424, 378636, 441742, 504848, 662613, 757272, 883484, 1009696, 1325226, 1514544, 1766968, 2650452, 3029088, 3533936, 5300904, 7067872, 10601808, 21203616]

約数ペア:

[(1, 21203616), (2, 10601808), (3, 7067872), (4, 5300904), (6, 3533936), (7, 3029088), (8, 2650452), (12, 1766968), (14, 1514544), (16, 1325226), (21, 1009696), (24, 883484), (28, 757272), (32, 662613), (42, 504848), (48, 441742), (56, 378636), (84, 252424), (96, 220871), (112, 189318), (139, 152544), (168, 126212), (224, 94659), (227, 93408), (278, 76272), (336, 63106), (417, 50848), (454, 46704), (556, 38136), (672, 31553), (681, 31136), (834, 25424), (908, 23352), (973, 21792), (1112, 19068), (1362, 15568), (1589, 13344), (1668, 12712), (1816, 11676), (1946, 10896), (2224, 9534), (2724, 7784), (2919, 7264), (3178, 6672), (3336, 6356), (3632, 5838), (3892, 5448), (4448, 4767)]