21980224

素因数分解:

$2^6\times 7^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 84

約数和(自身を含む): 52236624

約数和(自身を除く): 30256400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 64, 86, 98, 112, 163, 172, 196, 224, 301, 326, 344, 392, 448, 602, 652, 688, 784, 1141, 1204, 1304, 1376, 1568, 2107, 2282, 2408, 2608, 2752, 3136, 4214, 4564, 4816, 5216, 7009, 7987, 8428, 9128, 9632, 10432, 14018, 15974, 16856, 18256, 19264, 28036, 31948, 33712, 36512, 49063, 56072, 63896, 67424, 73024, 98126, 112144, 127792, 134848, 196252, 224288, 255584, 343441, 392504, 448576, 511168, 686882, 785008, 1373764, 1570016, 2747528, 3140032, 5495056, 10990112, 21980224]

約数ペア:

[(1, 21980224), (2, 10990112), (4, 5495056), (7, 3140032), (8, 2747528), (14, 1570016), (16, 1373764), (28, 785008), (32, 686882), (43, 511168), (49, 448576), (56, 392504), (64, 343441), (86, 255584), (98, 224288), (112, 196252), (163, 134848), (172, 127792), (196, 112144), (224, 98126), (301, 73024), (326, 67424), (344, 63896), (392, 56072), (448, 49063), (602, 36512), (652, 33712), (688, 31948), (784, 28036), (1141, 19264), (1204, 18256), (1304, 16856), (1376, 15974), (1568, 14018), (2107, 10432), (2282, 9632), (2408, 9128), (2608, 8428), (2752, 7987), (3136, 7009), (4214, 5216), (4564, 4816)]