21585172

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 46182528

約数和(自身を除く): 24597356

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 137, 238, 274, 331, 476, 548, 662, 959, 1324, 1918, 2317, 2329, 3836, 4634, 4658, 5627, 9268, 9316, 11254, 16303, 22508, 32606, 39389, 45347, 65212, 78778, 90694, 157556, 181388, 317429, 634858, 770899, 1269716, 1541798, 3083596, 5396293, 10792586, 21585172]

約数ペア:

[(1, 21585172), (2, 10792586), (4, 5396293), (7, 3083596), (14, 1541798), (17, 1269716), (28, 770899), (34, 634858), (68, 317429), (119, 181388), (137, 157556), (238, 90694), (274, 78778), (331, 65212), (476, 45347), (548, 39389), (662, 32606), (959, 22508), (1324, 16303), (1918, 11254), (2317, 9316), (2329, 9268), (3836, 5627), (4634, 4658)]