21666624

素因数分解:

$2^6\times 3^1\times 7^4\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 140

約数和(自身を含む): 68299584

約数和(自身を除く): 46632960

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 47, 48, 49, 56, 64, 84, 94, 96, 98, 112, 141, 147, 168, 188, 192, 196, 224, 282, 294, 329, 336, 343, 376, 392, 448, 564, 588, 658, 672, 686, 752, 784, 987, 1029, 1128, 1176, 1316, 1344, 1372, 1504, 1568, 1974, 2058, 2256, 2303, 2352, 2401, 2632, 2744, 3008, 3136, 3948, 4116, 4512, 4606, 4704, 4802, 5264, 5488, 6909, 7203, 7896, 8232, 9024, 9212, 9408, 9604, 10528, 10976, 13818, 14406, 15792, 16121, 16464, 18424, 19208, 21056, 21952, 27636, 28812, 31584, 32242, 32928, 36848, 38416, 48363, 55272, 57624, 63168, 64484, 65856, 73696, 76832, 96726, 110544, 112847, 115248, 128968, 147392, 153664, 193452, 221088, 225694, 230496, 257936, 338541, 386904, 442176, 451388, 460992, 515872, 677082, 773808, 902776, 1031744, 1354164, 1547616, 1805552, 2708328, 3095232, 3611104, 5416656, 7222208, 10833312, 21666624]

約数ペア:

[(1, 21666624), (2, 10833312), (3, 7222208), (4, 5416656), (6, 3611104), (7, 3095232), (8, 2708328), (12, 1805552), (14, 1547616), (16, 1354164), (21, 1031744), (24, 902776), (28, 773808), (32, 677082), (42, 515872), (47, 460992), (48, 451388), (49, 442176), (56, 386904), (64, 338541), (84, 257936), (94, 230496), (96, 225694), (98, 221088), (112, 193452), (141, 153664), (147, 147392), (168, 128968), (188, 115248), (192, 112847), (196, 110544), (224, 96726), (282, 76832), (294, 73696), (329, 65856), (336, 64484), (343, 63168), (376, 57624), (392, 55272), (448, 48363), (564, 38416), (588, 36848), (658, 32928), (672, 32242), (686, 31584), (752, 28812), (784, 27636), (987, 21952), (1029, 21056), (1128, 19208), (1176, 18424), (1316, 16464), (1344, 16121), (1372, 15792), (1504, 14406), (1568, 13818), (1974, 10976), (2058, 10528), (2256, 9604), (2303, 9408), (2352, 9212), (2401, 9024), (2632, 8232), (2744, 7896), (3008, 7203), (3136, 6909), (3948, 5488), (4116, 5264), (4512, 4802), (4606, 4704)]