21421167220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{317}}^1\times {\mathrm{853}}^1$

素因数の和:1429

約数の個数: 96

約数和(自身を含む): 48042173088

約数和(自身を除く): 26621005868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 233, 317, 340, 466, 634, 853, 932, 1165, 1268, 1585, 1706, 2330, 3170, 3412, 3961, 4265, 4660, 5389, 6340, 7922, 8530, 10778, 14501, 15844, 17060, 19805, 21556, 26945, 29002, 39610, 53890, 58004, 72505, 73861, 79220, 107780, 145010, 147722, 198749, 270401, 290020, 295444, 369305, 397498, 540802, 738610, 794996, 993745, 1081604, 1255637, 1352005, 1477220, 1987490, 2511274, 2704010, 3378733, 3974980, 4596817, 5022548, 5408020, 6278185, 6757466, 9193634, 12556370, 13514932, 16893665, 18387268, 22984085, 25112740, 33787330, 45968170, 63003433, 67574660, 91936340, 126006866, 252013732, 315017165, 630034330, 1071058361, 1260068660, 2142116722, 4284233444, 5355291805, 10710583610, 21421167220]

約数ペア:

[(1, 21421167220), (2, 10710583610), (4, 5355291805), (5, 4284233444), (10, 2142116722), (17, 1260068660), (20, 1071058361), (34, 630034330), (68, 315017165), (85, 252013732), (170, 126006866), (233, 91936340), (317, 67574660), (340, 63003433), (466, 45968170), (634, 33787330), (853, 25112740), (932, 22984085), (1165, 18387268), (1268, 16893665), (1585, 13514932), (1706, 12556370), (2330, 9193634), (3170, 6757466), (3412, 6278185), (3961, 5408020), (4265, 5022548), (4660, 4596817), (5389, 3974980), (6340, 3378733), (7922, 2704010), (8530, 2511274), (10778, 1987490), (14501, 1477220), (15844, 1352005), (17060, 1255637), (19805, 1081604), (21556, 993745), (26945, 794996), (29002, 738610), (39610, 540802), (53890, 397498), (58004, 369305), (72505, 295444), (73861, 290020), (79220, 270401), (107780, 198749), (145010, 147722)]