21595860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{839}}^1$

素因数の和:878

約数の個数: 144

約数和(自身を含む): 77051520

約数和(自身を除く): 55455660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 839, 858, 990, 1170, 1287, 1430, 1678, 1716, 1980, 2145, 2340, 2517, 2574, 2860, 3356, 4195, 4290, 5034, 5148, 6435, 7551, 8390, 8580, 9229, 10068, 10907, 12585, 12870, 15102, 16780, 18458, 21814, 25170, 25740, 27687, 30204, 32721, 36916, 37755, 43628, 46145, 50340, 54535, 55374, 65442, 75510, 83061, 92290, 98163, 109070, 110748, 119977, 130884, 138435, 151020, 163605, 166122, 184580, 196326, 218140, 239954, 276870, 327210, 332244, 359931, 392652, 415305, 479908, 490815, 553740, 599885, 654420, 719862, 830610, 981630, 1079793, 1199770, 1439724, 1661220, 1799655, 1963260, 2159586, 2399540, 3599310, 4319172, 5398965, 7198620, 10797930, 21595860]

約数ペア:

[(1, 21595860), (2, 10797930), (3, 7198620), (4, 5398965), (5, 4319172), (6, 3599310), (9, 2399540), (10, 2159586), (11, 1963260), (12, 1799655), (13, 1661220), (15, 1439724), (18, 1199770), (20, 1079793), (22, 981630), (26, 830610), (30, 719862), (33, 654420), (36, 599885), (39, 553740), (44, 490815), (45, 479908), (52, 415305), (55, 392652), (60, 359931), (65, 332244), (66, 327210), (78, 276870), (90, 239954), (99, 218140), (110, 196326), (117, 184580), (130, 166122), (132, 163605), (143, 151020), (156, 138435), (165, 130884), (180, 119977), (195, 110748), (198, 109070), (220, 98163), (234, 92290), (260, 83061), (286, 75510), (330, 65442), (390, 55374), (396, 54535), (429, 50340), (468, 46145), (495, 43628), (572, 37755), (585, 36916), (660, 32721), (715, 30204), (780, 27687), (839, 25740), (858, 25170), (990, 21814), (1170, 18458), (1287, 16780), (1430, 15102), (1678, 12870), (1716, 12585), (1980, 10907), (2145, 10068), (2340, 9229), (2517, 8580), (2574, 8390), (2860, 7551), (3356, 6435), (4195, 5148), (4290, 5034)]