21536284

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1427}}^1$

素因数の和:1463

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 26444516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 343, 539, 686, 1078, 1372, 1427, 2156, 2854, 3773, 5708, 7546, 9989, 15092, 15697, 19978, 31394, 39956, 62788, 69923, 109879, 139846, 219758, 279692, 439516, 489461, 769153, 978922, 1538306, 1957844, 3076612, 5384071, 10768142, 21536284]

約数ペア:

[(1, 21536284), (2, 10768142), (4, 5384071), (7, 3076612), (11, 1957844), (14, 1538306), (22, 978922), (28, 769153), (44, 489461), (49, 439516), (77, 279692), (98, 219758), (154, 139846), (196, 109879), (308, 69923), (343, 62788), (539, 39956), (686, 31394), (1078, 19978), (1372, 15697), (1427, 15092), (2156, 9989), (2854, 7546), (3773, 5708)]