21980686

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 21564914

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 59, 89, 91, 118, 161, 178, 182, 299, 322, 413, 598, 623, 767, 826, 1157, 1246, 1357, 1534, 2047, 2093, 2314, 2714, 4094, 4186, 5251, 5369, 8099, 9499, 10502, 10738, 14329, 16198, 17641, 18998, 26611, 28658, 35282, 36757, 53222, 68263, 73514, 120773, 123487, 136526, 186277, 241546, 246974, 372554, 477841, 845411, 955682, 1570049, 1690822, 3140098, 10990343, 21980686]

約数ペア:

[(1, 21980686), (2, 10990343), (7, 3140098), (13, 1690822), (14, 1570049), (23, 955682), (26, 845411), (46, 477841), (59, 372554), (89, 246974), (91, 241546), (118, 186277), (161, 136526), (178, 123487), (182, 120773), (299, 73514), (322, 68263), (413, 53222), (598, 36757), (623, 35282), (767, 28658), (826, 26611), (1157, 18998), (1246, 17641), (1357, 16198), (1534, 14329), (2047, 10738), (2093, 10502), (2314, 9499), (2714, 8099), (4094, 5369), (4186, 5251)]