21167503555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{38707}}^1$

素因数の和:38947

約数の個数: 32

約数和(自身を含む): 28337971968

約数和(自身を除く): 7170468413

約数列:

[1, 5, 11, 55, 61, 163, 305, 671, 815, 1793, 3355, 8965, 9943, 38707, 49715, 109373, 193535, 425777, 546865, 2128885, 2361127, 6309241, 11805635, 25972397, 31546205, 69401651, 129861985, 347008255, 384863701, 1924318505, 4233500711, 21167503555]

約数ペア:

[(1, 21167503555), (5, 4233500711), (11, 1924318505), (55, 384863701), (61, 347008255), (163, 129861985), (305, 69401651), (671, 31546205), (815, 25972397), (1793, 11805635), (3355, 6309241), (8965, 2361127), (9943, 2128885), (38707, 546865), (49715, 425777), (109373, 193535)]