21229992

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:780

約数の個数: 128

約数和(自身を含む): 71040000

約数和(自身を除く): 49810008

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 27, 28, 36, 38, 42, 54, 56, 57, 63, 72, 76, 84, 108, 114, 126, 133, 152, 168, 171, 189, 216, 228, 252, 266, 342, 378, 399, 456, 504, 513, 532, 684, 739, 756, 798, 1026, 1064, 1197, 1368, 1478, 1512, 1596, 2052, 2217, 2394, 2956, 3192, 3591, 4104, 4434, 4788, 5173, 5912, 6651, 7182, 8868, 9576, 10346, 13302, 14041, 14364, 15519, 17736, 19953, 20692, 26604, 28082, 28728, 31038, 39906, 41384, 42123, 46557, 53208, 56164, 62076, 79812, 84246, 93114, 98287, 112328, 124152, 126369, 139671, 159624, 168492, 186228, 196574, 252738, 279342, 294861, 336984, 372456, 379107, 393148, 505476, 558684, 589722, 758214, 786296, 884583, 1010952, 1117368, 1179444, 1516428, 1769166, 2358888, 2653749, 3032856, 3538332, 5307498, 7076664, 10614996, 21229992]

約数ペア:

[(1, 21229992), (2, 10614996), (3, 7076664), (4, 5307498), (6, 3538332), (7, 3032856), (8, 2653749), (9, 2358888), (12, 1769166), (14, 1516428), (18, 1179444), (19, 1117368), (21, 1010952), (24, 884583), (27, 786296), (28, 758214), (36, 589722), (38, 558684), (42, 505476), (54, 393148), (56, 379107), (57, 372456), (63, 336984), (72, 294861), (76, 279342), (84, 252738), (108, 196574), (114, 186228), (126, 168492), (133, 159624), (152, 139671), (168, 126369), (171, 124152), (189, 112328), (216, 98287), (228, 93114), (252, 84246), (266, 79812), (342, 62076), (378, 56164), (399, 53208), (456, 46557), (504, 42123), (513, 41384), (532, 39906), (684, 31038), (739, 28728), (756, 28082), (798, 26604), (1026, 20692), (1064, 19953), (1197, 17736), (1368, 15519), (1478, 14364), (1512, 14041), (1596, 13302), (2052, 10346), (2217, 9576), (2394, 8868), (2956, 7182), (3192, 6651), (3591, 5912), (4104, 5173), (4434, 4788)]