215804946

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:847

約数の個数: 64

約数和(自身を含む): 505967616

約数和(自身を除く): 290162670

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 131, 183, 262, 366, 393, 427, 643, 786, 854, 917, 1281, 1286, 1834, 1929, 2562, 2751, 3858, 4501, 5502, 7991, 9002, 13503, 15982, 23973, 27006, 39223, 47946, 55937, 78446, 84233, 111874, 117669, 167811, 168466, 235338, 252699, 274561, 335622, 505398, 549122, 589631, 823683, 1179262, 1647366, 1768893, 3537786, 5138213, 10276426, 15414639, 30829278, 35967491, 71934982, 107902473, 215804946]

約数ペア:

[(1, 215804946), (2, 107902473), (3, 71934982), (6, 35967491), (7, 30829278), (14, 15414639), (21, 10276426), (42, 5138213), (61, 3537786), (122, 1768893), (131, 1647366), (183, 1179262), (262, 823683), (366, 589631), (393, 549122), (427, 505398), (643, 335622), (786, 274561), (854, 252699), (917, 235338), (1281, 168466), (1286, 167811), (1834, 117669), (1929, 111874), (2562, 84233), (2751, 78446), (3858, 55937), (4501, 47946), (5502, 39223), (7991, 27006), (9002, 23973), (13503, 15982)]