21153876

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 51710400

約数和(自身を除く): 30556524

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 89, 116, 174, 178, 267, 348, 356, 534, 683, 1068, 1366, 2049, 2581, 2732, 4098, 5162, 7743, 8196, 10324, 15486, 19807, 30972, 39614, 59421, 60787, 79228, 118842, 121574, 182361, 237684, 243148, 364722, 729444, 1762823, 3525646, 5288469, 7051292, 10576938, 21153876]

約数ペア:

[(1, 21153876), (2, 10576938), (3, 7051292), (4, 5288469), (6, 3525646), (12, 1762823), (29, 729444), (58, 364722), (87, 243148), (89, 237684), (116, 182361), (174, 121574), (178, 118842), (267, 79228), (348, 60787), (356, 59421), (534, 39614), (683, 30972), (1068, 19807), (1366, 15486), (2049, 10324), (2581, 8196), (2732, 7743), (4098, 5162)]