21988624

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10333}}^1$

素因数の和:10367

約数の個数: 40

約数和(自身を含む): 51256640

約数和(自身を除く): 29268016

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 10333, 20666, 41332, 72331, 82664, 144662, 165328, 196327, 289324, 392654, 578648, 785308, 1157296, 1374289, 1570616, 2748578, 3141232, 5497156, 10994312, 21988624]

約数ペア:

[(1, 21988624), (2, 10994312), (4, 5497156), (7, 3141232), (8, 2748578), (14, 1570616), (16, 1374289), (19, 1157296), (28, 785308), (38, 578648), (56, 392654), (76, 289324), (112, 196327), (133, 165328), (152, 144662), (266, 82664), (304, 72331), (532, 41332), (1064, 20666), (2128, 10333)]