21946185

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 40098240

約数和(自身を除く): 18152055

約数列:

[1, 3, 5, 9, 15, 29, 45, 67, 87, 145, 201, 251, 261, 335, 435, 603, 753, 1005, 1255, 1305, 1943, 2259, 3015, 3765, 5829, 7279, 9715, 11295, 16817, 17487, 21837, 29145, 36395, 50451, 65511, 84085, 87435, 109185, 151353, 252255, 327555, 487693, 756765, 1463079, 2438465, 4389237, 7315395, 21946185]

約数ペア:

[(1, 21946185), (3, 7315395), (5, 4389237), (9, 2438465), (15, 1463079), (29, 756765), (45, 487693), (67, 327555), (87, 252255), (145, 151353), (201, 109185), (251, 87435), (261, 84085), (335, 65511), (435, 50451), (603, 36395), (753, 29145), (1005, 21837), (1255, 17487), (1305, 16817), (1943, 11295), (2259, 9715), (3015, 7279), (3765, 5829)]