21330240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1307}}^1$

素因数の和:1344

約数の個数: 112

約数和(自身を含む): 71762112

約数和(自身を除く): 50431872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1307, 1360, 1632, 2040, 2614, 2720, 3264, 3921, 4080, 5228, 5440, 6535, 7842, 8160, 10456, 13070, 15684, 16320, 19605, 20912, 22219, 26140, 31368, 39210, 41824, 44438, 52280, 62736, 66657, 78420, 83648, 88876, 104560, 111095, 125472, 133314, 156840, 177752, 209120, 222190, 250944, 266628, 313680, 333285, 355504, 418240, 444380, 533256, 627360, 666570, 711008, 888760, 1066512, 1254720, 1333140, 1422016, 1777520, 2133024, 2666280, 3555040, 4266048, 5332560, 7110080, 10665120, 21330240]

約数ペア:

[(1, 21330240), (2, 10665120), (3, 7110080), (4, 5332560), (5, 4266048), (6, 3555040), (8, 2666280), (10, 2133024), (12, 1777520), (15, 1422016), (16, 1333140), (17, 1254720), (20, 1066512), (24, 888760), (30, 711008), (32, 666570), (34, 627360), (40, 533256), (48, 444380), (51, 418240), (60, 355504), (64, 333285), (68, 313680), (80, 266628), (85, 250944), (96, 222190), (102, 209120), (120, 177752), (136, 156840), (160, 133314), (170, 125472), (192, 111095), (204, 104560), (240, 88876), (255, 83648), (272, 78420), (320, 66657), (340, 62736), (408, 52280), (480, 44438), (510, 41824), (544, 39210), (680, 31368), (816, 26140), (960, 22219), (1020, 20912), (1088, 19605), (1307, 16320), (1360, 15684), (1632, 13070), (2040, 10456), (2614, 8160), (2720, 7842), (3264, 6535), (3921, 5440), (4080, 5228)]