21117516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{4261}}^1$

素因数の和:4334

約数の個数: 48

約数和(自身を含む): 57281280

約数和(自身を除く): 36163764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 59, 84, 118, 177, 236, 354, 413, 708, 826, 1239, 1652, 2478, 4261, 4956, 8522, 12783, 17044, 25566, 29827, 51132, 59654, 89481, 119308, 178962, 251399, 357924, 502798, 754197, 1005596, 1508394, 1759793, 3016788, 3519586, 5279379, 7039172, 10558758, 21117516]

約数ペア:

[(1, 21117516), (2, 10558758), (3, 7039172), (4, 5279379), (6, 3519586), (7, 3016788), (12, 1759793), (14, 1508394), (21, 1005596), (28, 754197), (42, 502798), (59, 357924), (84, 251399), (118, 178962), (177, 119308), (236, 89481), (354, 59654), (413, 51132), (708, 29827), (826, 25566), (1239, 17044), (1652, 12783), (2478, 8522), (4261, 4956)]