21207660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 62741952

約数和(自身を除く): 41534292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 41, 60, 74, 82, 111, 123, 148, 164, 185, 205, 222, 233, 246, 370, 410, 444, 466, 492, 555, 615, 699, 740, 820, 932, 1110, 1165, 1230, 1398, 1517, 2220, 2330, 2460, 2796, 3034, 3495, 4551, 4660, 6068, 6990, 7585, 8621, 9102, 9553, 13980, 15170, 17242, 18204, 19106, 22755, 25863, 28659, 30340, 34484, 38212, 43105, 45510, 47765, 51726, 57318, 86210, 91020, 95530, 103452, 114636, 129315, 143295, 172420, 191060, 258630, 286590, 353461, 517260, 573180, 706922, 1060383, 1413844, 1767305, 2120766, 3534610, 4241532, 5301915, 7069220, 10603830, 21207660]

約数ペア:

[(1, 21207660), (2, 10603830), (3, 7069220), (4, 5301915), (5, 4241532), (6, 3534610), (10, 2120766), (12, 1767305), (15, 1413844), (20, 1060383), (30, 706922), (37, 573180), (41, 517260), (60, 353461), (74, 286590), (82, 258630), (111, 191060), (123, 172420), (148, 143295), (164, 129315), (185, 114636), (205, 103452), (222, 95530), (233, 91020), (246, 86210), (370, 57318), (410, 51726), (444, 47765), (466, 45510), (492, 43105), (555, 38212), (615, 34484), (699, 30340), (740, 28659), (820, 25863), (932, 22755), (1110, 19106), (1165, 18204), (1230, 17242), (1398, 15170), (1517, 13980), (2220, 9553), (2330, 9102), (2460, 8621), (2796, 7585), (3034, 6990), (3495, 6068), (4551, 4660)]