21984216

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1303}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 59462400

約数和(自身を除く): 37478184

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 37, 38, 57, 74, 76, 111, 114, 148, 152, 222, 228, 296, 444, 456, 703, 888, 1303, 1406, 2109, 2606, 2812, 3909, 4218, 5212, 5624, 7818, 8436, 10424, 15636, 16872, 24757, 31272, 48211, 49514, 74271, 96422, 99028, 144633, 148542, 192844, 198056, 289266, 297084, 385688, 578532, 594168, 916009, 1157064, 1832018, 2748027, 3664036, 5496054, 7328072, 10992108, 21984216]

約数ペア:

[(1, 21984216), (2, 10992108), (3, 7328072), (4, 5496054), (6, 3664036), (8, 2748027), (12, 1832018), (19, 1157064), (24, 916009), (37, 594168), (38, 578532), (57, 385688), (74, 297084), (76, 289266), (111, 198056), (114, 192844), (148, 148542), (152, 144633), (222, 99028), (228, 96422), (296, 74271), (444, 49514), (456, 48211), (703, 31272), (888, 24757), (1303, 16872), (1406, 15636), (2109, 10424), (2606, 8436), (2812, 7818), (3909, 5624), (4218, 5212)]