21729180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 69445152

約数和(自身を除く): 47715972

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 41, 44, 55, 60, 66, 73, 82, 110, 121, 123, 132, 146, 164, 165, 205, 219, 220, 242, 246, 292, 330, 363, 365, 410, 438, 451, 484, 492, 605, 615, 660, 726, 730, 803, 820, 876, 902, 1095, 1210, 1230, 1353, 1452, 1460, 1606, 1804, 1815, 2190, 2255, 2409, 2420, 2460, 2706, 2993, 3212, 3630, 4015, 4380, 4510, 4818, 4961, 5412, 5986, 6765, 7260, 8030, 8833, 8979, 9020, 9636, 9922, 11972, 12045, 13530, 14883, 14965, 16060, 17666, 17958, 19844, 24090, 24805, 26499, 27060, 29766, 29930, 32923, 35332, 35916, 44165, 44895, 48180, 49610, 52998, 59532, 59860, 65846, 74415, 88330, 89790, 98769, 99220, 105996, 131692, 132495, 148830, 164615, 176660, 179580, 197538, 264990, 297660, 329230, 362153, 395076, 493845, 529980, 658460, 724306, 987690, 1086459, 1448612, 1810765, 1975380, 2172918, 3621530, 4345836, 5432295, 7243060, 10864590, 21729180]

約数ペア:

[(1, 21729180), (2, 10864590), (3, 7243060), (4, 5432295), (5, 4345836), (6, 3621530), (10, 2172918), (11, 1975380), (12, 1810765), (15, 1448612), (20, 1086459), (22, 987690), (30, 724306), (33, 658460), (41, 529980), (44, 493845), (55, 395076), (60, 362153), (66, 329230), (73, 297660), (82, 264990), (110, 197538), (121, 179580), (123, 176660), (132, 164615), (146, 148830), (164, 132495), (165, 131692), (205, 105996), (219, 99220), (220, 98769), (242, 89790), (246, 88330), (292, 74415), (330, 65846), (363, 59860), (365, 59532), (410, 52998), (438, 49610), (451, 48180), (484, 44895), (492, 44165), (605, 35916), (615, 35332), (660, 32923), (726, 29930), (730, 29766), (803, 27060), (820, 26499), (876, 24805), (902, 24090), (1095, 19844), (1210, 17958), (1230, 17666), (1353, 16060), (1452, 14965), (1460, 14883), (1606, 13530), (1804, 12045), (1815, 11972), (2190, 9922), (2255, 9636), (2409, 9020), (2420, 8979), (2460, 8833), (2706, 8030), (2993, 7260), (3212, 6765), (3630, 5986), (4015, 5412), (4380, 4961), (4510, 4818)]