21489452

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 19878868

約数列:

[1, 2, 4, 23, 37, 46, 59, 74, 92, 107, 118, 148, 214, 236, 428, 851, 1357, 1702, 2183, 2461, 2714, 3404, 3959, 4366, 4922, 5428, 6313, 7918, 8732, 9844, 12626, 15836, 25252, 50209, 91057, 100418, 145199, 182114, 200836, 233581, 290398, 364228, 467162, 580796, 934324, 5372363, 10744726, 21489452]

約数ペア:

[(1, 21489452), (2, 10744726), (4, 5372363), (23, 934324), (37, 580796), (46, 467162), (59, 364228), (74, 290398), (92, 233581), (107, 200836), (118, 182114), (148, 145199), (214, 100418), (236, 91057), (428, 50209), (851, 25252), (1357, 15836), (1702, 12626), (2183, 9844), (2461, 8732), (2714, 7918), (3404, 6313), (3959, 5428), (4366, 4922)]