21595840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:366

約数の個数: 112

約数和(自身を含む): 60862464

約数和(自身を除く): 39266624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 311, 320, 434, 448, 496, 560, 620, 622, 868, 992, 1085, 1120, 1240, 1244, 1555, 1736, 1984, 2170, 2177, 2240, 2480, 2488, 3110, 3472, 4340, 4354, 4960, 4976, 6220, 6944, 8680, 8708, 9641, 9920, 9952, 10885, 12440, 13888, 17360, 17416, 19282, 19904, 21770, 24880, 34720, 34832, 38564, 43540, 48205, 49760, 67487, 69440, 69664, 77128, 87080, 96410, 99520, 134974, 139328, 154256, 174160, 192820, 269948, 308512, 337435, 348320, 385640, 539896, 617024, 674870, 696640, 771280, 1079792, 1349740, 1542560, 2159584, 2699480, 3085120, 4319168, 5398960, 10797920, 21595840]

約数ペア:

[(1, 21595840), (2, 10797920), (4, 5398960), (5, 4319168), (7, 3085120), (8, 2699480), (10, 2159584), (14, 1542560), (16, 1349740), (20, 1079792), (28, 771280), (31, 696640), (32, 674870), (35, 617024), (40, 539896), (56, 385640), (62, 348320), (64, 337435), (70, 308512), (80, 269948), (112, 192820), (124, 174160), (140, 154256), (155, 139328), (160, 134974), (217, 99520), (224, 96410), (248, 87080), (280, 77128), (310, 69664), (311, 69440), (320, 67487), (434, 49760), (448, 48205), (496, 43540), (560, 38564), (620, 34832), (622, 34720), (868, 24880), (992, 21770), (1085, 19904), (1120, 19282), (1240, 17416), (1244, 17360), (1555, 13888), (1736, 12440), (1984, 10885), (2170, 9952), (2177, 9920), (2240, 9641), (2480, 8708), (2488, 8680), (3110, 6944), (3472, 6220), (4340, 4976), (4354, 4960)]