21426552

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:442

約数の個数: 128

約数和(自身を含む): 70041600

約数和(自身を除く): 48615048

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 37, 42, 54, 56, 63, 72, 74, 84, 108, 111, 126, 148, 168, 189, 216, 222, 252, 259, 296, 333, 378, 383, 444, 504, 518, 666, 756, 766, 777, 888, 999, 1036, 1149, 1332, 1512, 1532, 1554, 1998, 2072, 2298, 2331, 2664, 2681, 3064, 3108, 3447, 3996, 4596, 4662, 5362, 6216, 6894, 6993, 7992, 8043, 9192, 9324, 10341, 10724, 13788, 13986, 14171, 16086, 18648, 20682, 21448, 24129, 27576, 27972, 28342, 32172, 41364, 42513, 48258, 55944, 56684, 64344, 72387, 82728, 85026, 96516, 99197, 113368, 127539, 144774, 170052, 193032, 198394, 255078, 289548, 297591, 340104, 382617, 396788, 510156, 579096, 595182, 765234, 793576, 892773, 1020312, 1190364, 1530468, 1785546, 2380728, 2678319, 3060936, 3571092, 5356638, 7142184, 10713276, 21426552]

約数ペア:

[(1, 21426552), (2, 10713276), (3, 7142184), (4, 5356638), (6, 3571092), (7, 3060936), (8, 2678319), (9, 2380728), (12, 1785546), (14, 1530468), (18, 1190364), (21, 1020312), (24, 892773), (27, 793576), (28, 765234), (36, 595182), (37, 579096), (42, 510156), (54, 396788), (56, 382617), (63, 340104), (72, 297591), (74, 289548), (84, 255078), (108, 198394), (111, 193032), (126, 170052), (148, 144774), (168, 127539), (189, 113368), (216, 99197), (222, 96516), (252, 85026), (259, 82728), (296, 72387), (333, 64344), (378, 56684), (383, 55944), (444, 48258), (504, 42513), (518, 41364), (666, 32172), (756, 28342), (766, 27972), (777, 27576), (888, 24129), (999, 21448), (1036, 20682), (1149, 18648), (1332, 16086), (1512, 14171), (1532, 13986), (1554, 13788), (1998, 10724), (2072, 10341), (2298, 9324), (2331, 9192), (2664, 8043), (2681, 7992), (3064, 6993), (3108, 6894), (3447, 6216), (3996, 5362), (4596, 4662)]