20995968

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 128

約数和(自身を含む): 65214720

約数和(自身を除く): 44218752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 73, 84, 96, 107, 112, 128, 146, 168, 192, 214, 219, 224, 292, 321, 336, 384, 428, 438, 448, 511, 584, 642, 672, 749, 856, 876, 896, 1022, 1168, 1284, 1344, 1498, 1533, 1712, 1752, 2044, 2247, 2336, 2568, 2688, 2996, 3066, 3424, 3504, 4088, 4494, 4672, 5136, 5992, 6132, 6848, 7008, 7811, 8176, 8988, 9344, 10272, 11984, 12264, 13696, 14016, 15622, 16352, 17976, 20544, 23433, 23968, 24528, 28032, 31244, 32704, 35952, 41088, 46866, 47936, 49056, 54677, 62488, 65408, 71904, 93732, 95872, 98112, 109354, 124976, 143808, 164031, 187464, 196224, 218708, 249952, 287616, 328062, 374928, 437416, 499904, 656124, 749856, 874832, 999808, 1312248, 1499712, 1749664, 2624496, 2999424, 3499328, 5248992, 6998656, 10497984, 20995968]

約数ペア:

[(1, 20995968), (2, 10497984), (3, 6998656), (4, 5248992), (6, 3499328), (7, 2999424), (8, 2624496), (12, 1749664), (14, 1499712), (16, 1312248), (21, 999808), (24, 874832), (28, 749856), (32, 656124), (42, 499904), (48, 437416), (56, 374928), (64, 328062), (73, 287616), (84, 249952), (96, 218708), (107, 196224), (112, 187464), (128, 164031), (146, 143808), (168, 124976), (192, 109354), (214, 98112), (219, 95872), (224, 93732), (292, 71904), (321, 65408), (336, 62488), (384, 54677), (428, 49056), (438, 47936), (448, 46866), (511, 41088), (584, 35952), (642, 32704), (672, 31244), (749, 28032), (856, 24528), (876, 23968), (896, 23433), (1022, 20544), (1168, 17976), (1284, 16352), (1344, 15622), (1498, 14016), (1533, 13696), (1712, 12264), (1752, 11984), (2044, 10272), (2247, 9344), (2336, 8988), (2568, 8176), (2688, 7811), (2996, 7008), (3066, 6848), (3424, 6132), (3504, 5992), (4088, 5136), (4494, 4672)]