21058830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:506

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 39481650

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 41, 45, 65, 78, 82, 90, 117, 123, 130, 195, 205, 234, 246, 369, 390, 410, 439, 533, 585, 615, 738, 878, 1066, 1170, 1230, 1317, 1599, 1845, 2195, 2634, 2665, 3198, 3690, 3951, 4390, 4797, 5330, 5707, 6585, 7902, 7995, 9594, 11414, 13170, 15990, 17121, 17999, 19755, 23985, 28535, 34242, 35998, 39510, 47970, 51363, 53997, 57070, 85605, 89995, 102726, 107994, 161991, 171210, 179990, 233987, 256815, 269985, 323982, 467974, 513630, 539970, 701961, 809955, 1169935, 1403922, 1619910, 2105883, 2339870, 3509805, 4211766, 7019610, 10529415, 21058830]

約数ペア:

[(1, 21058830), (2, 10529415), (3, 7019610), (5, 4211766), (6, 3509805), (9, 2339870), (10, 2105883), (13, 1619910), (15, 1403922), (18, 1169935), (26, 809955), (30, 701961), (39, 539970), (41, 513630), (45, 467974), (65, 323982), (78, 269985), (82, 256815), (90, 233987), (117, 179990), (123, 171210), (130, 161991), (195, 107994), (205, 102726), (234, 89995), (246, 85605), (369, 57070), (390, 53997), (410, 51363), (439, 47970), (533, 39510), (585, 35998), (615, 34242), (738, 28535), (878, 23985), (1066, 19755), (1170, 17999), (1230, 17121), (1317, 15990), (1599, 13170), (1845, 11414), (2195, 9594), (2634, 7995), (2665, 7902), (3198, 6585), (3690, 5707), (3951, 5330), (4390, 4797)]