21907284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6361}}^1$

素因数の和:6416

約数の個数: 48

約数和(自身を含む): 59853696

約数和(自身を除く): 37946412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 82, 84, 123, 164, 246, 287, 492, 574, 861, 1148, 1722, 3444, 6361, 12722, 19083, 25444, 38166, 44527, 76332, 89054, 133581, 178108, 260801, 267162, 521602, 534324, 782403, 1043204, 1564806, 1825607, 3129612, 3651214, 5476821, 7302428, 10953642, 21907284]

約数ペア:

[(1, 21907284), (2, 10953642), (3, 7302428), (4, 5476821), (6, 3651214), (7, 3129612), (12, 1825607), (14, 1564806), (21, 1043204), (28, 782403), (41, 534324), (42, 521602), (82, 267162), (84, 260801), (123, 178108), (164, 133581), (246, 89054), (287, 76332), (492, 44527), (574, 38166), (861, 25444), (1148, 19083), (1722, 12722), (3444, 6361)]