20421408

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{30389}}^1$

素因数の和:30409

約数の個数: 48

約数和(自身を含む): 61266240

約数和(自身を除く): 40844832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 30389, 60778, 91167, 121556, 182334, 212723, 243112, 364668, 425446, 486224, 638169, 729336, 850892, 972448, 1276338, 1458672, 1701784, 2552676, 2917344, 3403568, 5105352, 6807136, 10210704, 20421408]

約数ペア:

[(1, 20421408), (2, 10210704), (3, 6807136), (4, 5105352), (6, 3403568), (7, 2917344), (8, 2552676), (12, 1701784), (14, 1458672), (16, 1276338), (21, 972448), (24, 850892), (28, 729336), (32, 638169), (42, 486224), (48, 425446), (56, 364668), (84, 243112), (96, 212723), (112, 182334), (168, 121556), (224, 91167), (336, 60778), (672, 30389)]