21955920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1867}}^1$

素因数の和:1897

約数の個数: 120

約数和(自身を含む): 79218144

約数和(自身を除く): 57262224

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1867, 1960, 2352, 2940, 3734, 3920, 5601, 5880, 7468, 9335, 11202, 11760, 13069, 14936, 18670, 22404, 26138, 28005, 29872, 37340, 39207, 44808, 52276, 56010, 65345, 74680, 78414, 89616, 91483, 104552, 112020, 130690, 149360, 156828, 182966, 196035, 209104, 224040, 261380, 274449, 313656, 365932, 392070, 448080, 457415, 522760, 548898, 627312, 731864, 784140, 914830, 1045520, 1097796, 1372245, 1463728, 1568280, 1829660, 2195592, 2744490, 3136560, 3659320, 4391184, 5488980, 7318640, 10977960, 21955920]

約数ペア:

[(1, 21955920), (2, 10977960), (3, 7318640), (4, 5488980), (5, 4391184), (6, 3659320), (7, 3136560), (8, 2744490), (10, 2195592), (12, 1829660), (14, 1568280), (15, 1463728), (16, 1372245), (20, 1097796), (21, 1045520), (24, 914830), (28, 784140), (30, 731864), (35, 627312), (40, 548898), (42, 522760), (48, 457415), (49, 448080), (56, 392070), (60, 365932), (70, 313656), (80, 274449), (84, 261380), (98, 224040), (105, 209104), (112, 196035), (120, 182966), (140, 156828), (147, 149360), (168, 130690), (196, 112020), (210, 104552), (240, 91483), (245, 89616), (280, 78414), (294, 74680), (336, 65345), (392, 56010), (420, 52276), (490, 44808), (560, 39207), (588, 37340), (735, 29872), (784, 28005), (840, 26138), (980, 22404), (1176, 18670), (1470, 14936), (1680, 13069), (1867, 11760), (1960, 11202), (2352, 9335), (2940, 7468), (3734, 5880), (3920, 5601)]