19899864

素因数分解:

$2^3\times 3^3\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 55692000

約数和(自身を除く): 35792136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 181, 216, 362, 509, 543, 724, 1018, 1086, 1448, 1527, 1629, 2036, 2172, 3054, 3258, 4072, 4344, 4581, 4887, 6108, 6516, 9162, 9774, 12216, 13032, 13743, 18324, 19548, 27486, 36648, 39096, 54972, 92129, 109944, 184258, 276387, 368516, 552774, 737032, 829161, 1105548, 1658322, 2211096, 2487483, 3316644, 4974966, 6633288, 9949932, 19899864]

約数ペア:

[(1, 19899864), (2, 9949932), (3, 6633288), (4, 4974966), (6, 3316644), (8, 2487483), (9, 2211096), (12, 1658322), (18, 1105548), (24, 829161), (27, 737032), (36, 552774), (54, 368516), (72, 276387), (108, 184258), (181, 109944), (216, 92129), (362, 54972), (509, 39096), (543, 36648), (724, 27486), (1018, 19548), (1086, 18324), (1448, 13743), (1527, 13032), (1629, 12216), (2036, 9774), (2172, 9162), (3054, 6516), (3258, 6108), (4072, 4887), (4344, 4581)]