21264496

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6359}}^1$

素因数の和:6397

約数の個数: 40

約数和(自身を含む): 47318400

約数和(自身を除く): 26053904

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6359, 12718, 25436, 50872, 69949, 101744, 120821, 139898, 241642, 279796, 483284, 559592, 966568, 1119184, 1329031, 1933136, 2658062, 5316124, 10632248, 21264496]

約数ペア:

[(1, 21264496), (2, 10632248), (4, 5316124), (8, 2658062), (11, 1933136), (16, 1329031), (19, 1119184), (22, 966568), (38, 559592), (44, 483284), (76, 279796), (88, 241642), (152, 139898), (176, 120821), (209, 101744), (304, 69949), (418, 50872), (836, 25436), (1672, 12718), (3344, 6359)]