21060252

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 55576976

約数和(自身を除く): 34516724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 97, 111, 148, 163, 194, 222, 291, 326, 333, 388, 444, 489, 582, 652, 666, 873, 978, 1164, 1332, 1467, 1746, 1956, 2934, 3492, 3589, 5868, 6031, 7178, 10767, 12062, 14356, 15811, 18093, 21534, 24124, 31622, 32301, 36186, 43068, 47433, 54279, 63244, 64602, 72372, 94866, 108558, 129204, 142299, 189732, 217116, 284598, 569196, 585007, 1170014, 1755021, 2340028, 3510042, 5265063, 7020084, 10530126, 21060252]

約数ペア:

[(1, 21060252), (2, 10530126), (3, 7020084), (4, 5265063), (6, 3510042), (9, 2340028), (12, 1755021), (18, 1170014), (36, 585007), (37, 569196), (74, 284598), (97, 217116), (111, 189732), (148, 142299), (163, 129204), (194, 108558), (222, 94866), (291, 72372), (326, 64602), (333, 63244), (388, 54279), (444, 47433), (489, 43068), (582, 36186), (652, 32301), (666, 31622), (873, 24124), (978, 21534), (1164, 18093), (1332, 15811), (1467, 14356), (1746, 12062), (1956, 10767), (2934, 7178), (3492, 6031), (3589, 5868)]