21059712

素因数分解:

$2^7\times 3^2\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:302

約数の個数: 96

約数和(自身を含む): 61539660

約数和(自身を除く): 40479948

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 101, 128, 144, 181, 192, 202, 288, 303, 362, 384, 404, 543, 576, 606, 724, 808, 909, 1086, 1152, 1212, 1448, 1616, 1629, 1818, 2172, 2424, 2896, 3232, 3258, 3636, 4344, 4848, 5792, 6464, 6516, 7272, 8688, 9696, 11584, 12928, 13032, 14544, 17376, 18281, 19392, 23168, 26064, 29088, 34752, 36562, 38784, 52128, 54843, 58176, 69504, 73124, 104256, 109686, 116352, 146248, 164529, 208512, 219372, 292496, 329058, 438744, 584992, 658116, 877488, 1169984, 1316232, 1754976, 2339968, 2632464, 3509952, 5264928, 7019904, 10529856, 21059712]

約数ペア:

[(1, 21059712), (2, 10529856), (3, 7019904), (4, 5264928), (6, 3509952), (8, 2632464), (9, 2339968), (12, 1754976), (16, 1316232), (18, 1169984), (24, 877488), (32, 658116), (36, 584992), (48, 438744), (64, 329058), (72, 292496), (96, 219372), (101, 208512), (128, 164529), (144, 146248), (181, 116352), (192, 109686), (202, 104256), (288, 73124), (303, 69504), (362, 58176), (384, 54843), (404, 52128), (543, 38784), (576, 36562), (606, 34752), (724, 29088), (808, 26064), (909, 23168), (1086, 19392), (1152, 18281), (1212, 17376), (1448, 14544), (1616, 13032), (1629, 12928), (1818, 11584), (2172, 9696), (2424, 8688), (2896, 7272), (3232, 6516), (3258, 6464), (3636, 5792), (4344, 4848)]