21097748

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 24060652

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 127, 238, 254, 349, 476, 508, 698, 889, 1396, 1778, 2159, 2443, 3556, 4318, 4886, 5933, 8636, 9772, 11866, 15113, 23732, 30226, 41531, 44323, 60452, 83062, 88646, 166124, 177292, 310261, 620522, 753491, 1241044, 1506982, 3013964, 5274437, 10548874, 21097748]

約数ペア:

[(1, 21097748), (2, 10548874), (4, 5274437), (7, 3013964), (14, 1506982), (17, 1241044), (28, 753491), (34, 620522), (68, 310261), (119, 177292), (127, 166124), (238, 88646), (254, 83062), (349, 60452), (476, 44323), (508, 41531), (698, 30226), (889, 23732), (1396, 15113), (1778, 11866), (2159, 9772), (2443, 8636), (3556, 5933), (4318, 4886)]