201221503

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 261080064

約数和(自身を除く): 59858561

約数列:

[1, 7, 17, 23, 37, 119, 161, 259, 391, 629, 851, 1987, 2737, 4403, 5957, 13909, 14467, 33779, 45701, 73519, 101269, 236453, 319907, 514633, 776917, 1249823, 1690937, 5438419, 8748761, 11836559, 28745929, 201221503]

約数ペア:

[(1, 201221503), (7, 28745929), (17, 11836559), (23, 8748761), (37, 5438419), (119, 1690937), (161, 1249823), (259, 776917), (391, 514633), (629, 319907), (851, 236453), (1987, 101269), (2737, 73519), (4403, 45701), (5957, 33779), (13909, 14467)]