21113904

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 65138688

約数和(自身を除く): 44024784

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, 191, 196, 282, 294, 329, 336, 376, 382, 392, 564, 573, 588, 658, 752, 764, 784, 987, 1128, 1146, 1176, 1316, 1337, 1528, 1974, 2256, 2292, 2303, 2352, 2632, 2674, 3056, 3948, 4011, 4584, 4606, 5264, 5348, 6909, 7896, 8022, 8977, 9168, 9212, 9359, 10696, 13818, 15792, 16044, 17954, 18424, 18718, 21392, 26931, 27636, 28077, 32088, 35908, 36848, 37436, 53862, 55272, 56154, 62839, 64176, 71816, 74872, 107724, 110544, 112308, 125678, 143632, 149744, 188517, 215448, 224616, 251356, 377034, 430896, 439873, 449232, 502712, 754068, 879746, 1005424, 1319619, 1508136, 1759492, 2639238, 3016272, 3518984, 5278476, 7037968, 10556952, 21113904]

約数ペア:

[(1, 21113904), (2, 10556952), (3, 7037968), (4, 5278476), (6, 3518984), (7, 3016272), (8, 2639238), (12, 1759492), (14, 1508136), (16, 1319619), (21, 1005424), (24, 879746), (28, 754068), (42, 502712), (47, 449232), (48, 439873), (49, 430896), (56, 377034), (84, 251356), (94, 224616), (98, 215448), (112, 188517), (141, 149744), (147, 143632), (168, 125678), (188, 112308), (191, 110544), (196, 107724), (282, 74872), (294, 71816), (329, 64176), (336, 62839), (376, 56154), (382, 55272), (392, 53862), (564, 37436), (573, 36848), (588, 35908), (658, 32088), (752, 28077), (764, 27636), (784, 26931), (987, 21392), (1128, 18718), (1146, 18424), (1176, 17954), (1316, 16044), (1337, 15792), (1528, 13818), (1974, 10696), (2256, 9359), (2292, 9212), (2303, 9168), (2352, 8977), (2632, 8022), (2674, 7896), (3056, 6909), (3948, 5348), (4011, 5264), (4584, 4606)]