20521710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1134

約数の個数: 96

約数和(自身を含む): 61326720

約数和(自身を除く): 40805010

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 19, 22, 30, 33, 38, 45, 55, 57, 66, 90, 95, 99, 110, 114, 165, 171, 190, 198, 209, 285, 330, 342, 418, 495, 570, 627, 855, 990, 1045, 1091, 1254, 1710, 1881, 2090, 2182, 3135, 3273, 3762, 5455, 6270, 6546, 9405, 9819, 10910, 12001, 16365, 18810, 19638, 20729, 24002, 32730, 36003, 41458, 49095, 60005, 62187, 72006, 98190, 103645, 108009, 120010, 124374, 180015, 186561, 207290, 216018, 228019, 310935, 360030, 373122, 456038, 540045, 621870, 684057, 932805, 1080090, 1140095, 1368114, 1865610, 2052171, 2280190, 3420285, 4104342, 6840570, 10260855, 20521710]

約数ペア:

[(1, 20521710), (2, 10260855), (3, 6840570), (5, 4104342), (6, 3420285), (9, 2280190), (10, 2052171), (11, 1865610), (15, 1368114), (18, 1140095), (19, 1080090), (22, 932805), (30, 684057), (33, 621870), (38, 540045), (45, 456038), (55, 373122), (57, 360030), (66, 310935), (90, 228019), (95, 216018), (99, 207290), (110, 186561), (114, 180015), (165, 124374), (171, 120010), (190, 108009), (198, 103645), (209, 98190), (285, 72006), (330, 62187), (342, 60005), (418, 49095), (495, 41458), (570, 36003), (627, 32730), (855, 24002), (990, 20729), (1045, 19638), (1091, 18810), (1254, 16365), (1710, 12001), (1881, 10910), (2090, 9819), (2182, 9405), (3135, 6546), (3273, 6270), (3762, 5455)]