21308670

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 112

約数和(自身を含む): 59808960

約数和(自身を除く): 38500290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 79, 81, 90, 111, 135, 158, 162, 185, 222, 237, 243, 270, 333, 370, 395, 405, 474, 486, 555, 666, 711, 729, 790, 810, 999, 1110, 1185, 1215, 1422, 1458, 1665, 1998, 2133, 2370, 2430, 2923, 2997, 3330, 3555, 3645, 4266, 4995, 5846, 5994, 6399, 7110, 7290, 8769, 8991, 9990, 10665, 12798, 14615, 14985, 17538, 17982, 19197, 21330, 26307, 26973, 29230, 29970, 31995, 38394, 43845, 44955, 52614, 53946, 57591, 63990, 78921, 87690, 89910, 95985, 115182, 131535, 134865, 157842, 191970, 236763, 263070, 269730, 287955, 394605, 473526, 575910, 710289, 789210, 1183815, 1420578, 2130867, 2367630, 3551445, 4261734, 7102890, 10654335, 21308670]

約数ペア:

[(1, 21308670), (2, 10654335), (3, 7102890), (5, 4261734), (6, 3551445), (9, 2367630), (10, 2130867), (15, 1420578), (18, 1183815), (27, 789210), (30, 710289), (37, 575910), (45, 473526), (54, 394605), (74, 287955), (79, 269730), (81, 263070), (90, 236763), (111, 191970), (135, 157842), (158, 134865), (162, 131535), (185, 115182), (222, 95985), (237, 89910), (243, 87690), (270, 78921), (333, 63990), (370, 57591), (395, 53946), (405, 52614), (474, 44955), (486, 43845), (555, 38394), (666, 31995), (711, 29970), (729, 29230), (790, 26973), (810, 26307), (999, 21330), (1110, 19197), (1185, 17982), (1215, 17538), (1422, 14985), (1458, 14615), (1665, 12798), (1998, 10665), (2133, 9990), (2370, 8991), (2430, 8769), (2923, 7290), (2997, 7110), (3330, 6399), (3555, 5994), (3645, 5846), (4266, 4995)]