21995376

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 61975200

約数和(自身を除く): 39979824

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 101, 104, 156, 202, 208, 303, 312, 349, 404, 606, 624, 698, 808, 1047, 1212, 1313, 1396, 1616, 2094, 2424, 2626, 2792, 3939, 4188, 4537, 4848, 5252, 5584, 7878, 8376, 9074, 10504, 13611, 15756, 16752, 18148, 21008, 27222, 31512, 35249, 36296, 54444, 63024, 70498, 72592, 105747, 108888, 140996, 211494, 217776, 281992, 422988, 458237, 563984, 845976, 916474, 1374711, 1691952, 1832948, 2749422, 3665896, 5498844, 7331792, 10997688, 21995376]

約数ペア:

[(1, 21995376), (2, 10997688), (3, 7331792), (4, 5498844), (6, 3665896), (8, 2749422), (12, 1832948), (13, 1691952), (16, 1374711), (24, 916474), (26, 845976), (39, 563984), (48, 458237), (52, 422988), (78, 281992), (101, 217776), (104, 211494), (156, 140996), (202, 108888), (208, 105747), (303, 72592), (312, 70498), (349, 63024), (404, 54444), (606, 36296), (624, 35249), (698, 31512), (808, 27222), (1047, 21008), (1212, 18148), (1313, 16752), (1396, 15756), (1616, 13611), (2094, 10504), (2424, 9074), (2626, 8376), (2792, 7878), (3939, 5584), (4188, 5252), (4537, 4848)]