21671914

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1$

素因数の和:826

約数の個数: 32

約数和(自身を含む): 37509120

約数和(自身を除く): 15837206

約数列:

[1, 2, 11, 22, 31, 43, 62, 86, 341, 473, 682, 739, 946, 1333, 1478, 2666, 8129, 14663, 16258, 22909, 29326, 31777, 45818, 63554, 251999, 349547, 503998, 699094, 985087, 1970174, 10835957, 21671914]

約数ペア:

[(1, 21671914), (2, 10835957), (11, 1970174), (22, 985087), (31, 699094), (43, 503998), (62, 349547), (86, 251999), (341, 63554), (473, 45818), (682, 31777), (739, 29326), (946, 22909), (1333, 16258), (1478, 14663), (2666, 8129)]