221356552781

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^2\times {\mathrm{2273}}^1$

素因数の和:2380

約数の個数: 108

約数和(自身を含む): 308075284692

約数和(自身を除く): 86718731911

約数列:

[1, 7, 13, 17, 23, 49, 91, 119, 161, 221, 289, 299, 391, 529, 637, 833, 1127, 1547, 2023, 2093, 2273, 2737, 3703, 3757, 5083, 6647, 6877, 8993, 10829, 14161, 14651, 15911, 19159, 25921, 26299, 29549, 35581, 38641, 46529, 48139, 52279, 62951, 86411, 111377, 116909, 152881, 184093, 206843, 249067, 270487, 325703, 336973, 365953, 440657, 502333, 604877, 656897, 679627, 818363, 888743, 1070167, 1202417, 1447901, 1893409, 1987453, 2561671, 3516331, 4234139, 4598279, 4757389, 5728541, 6221201, 7491169, 8416919, 8539661, 11553659, 13912171, 15108631, 15631421, 20441089, 24614317, 32187953, 33301723, 43548407, 58918433, 59777627, 80875613, 97385197, 105760417, 109419947, 143087623, 196412203, 265734157, 347498513, 418443389, 566129291, 740322919, 765939629, 1001613361, 1374885421, 1860139099, 2432489591, 4517480669, 9624197947, 13020973693, 17027427137, 31622364683, 221356552781]

約数ペア:

[(1, 221356552781), (7, 31622364683), (13, 17027427137), (17, 13020973693), (23, 9624197947), (49, 4517480669), (91, 2432489591), (119, 1860139099), (161, 1374885421), (221, 1001613361), (289, 765939629), (299, 740322919), (391, 566129291), (529, 418443389), (637, 347498513), (833, 265734157), (1127, 196412203), (1547, 143087623), (2023, 109419947), (2093, 105760417), (2273, 97385197), (2737, 80875613), (3703, 59777627), (3757, 58918433), (5083, 43548407), (6647, 33301723), (6877, 32187953), (8993, 24614317), (10829, 20441089), (14161, 15631421), (14651, 15108631), (15911, 13912171), (19159, 11553659), (25921, 8539661), (26299, 8416919), (29549, 7491169), (35581, 6221201), (38641, 5728541), (46529, 4757389), (48139, 4598279), (52279, 4234139), (62951, 3516331), (86411, 2561671), (111377, 1987453), (116909, 1893409), (152881, 1447901), (184093, 1202417), (206843, 1070167), (249067, 888743), (270487, 818363), (325703, 679627), (336973, 656897), (365953, 604877), (440657, 502333)]