221497738

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 427680000

約数和(自身を除く): 206182262

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 149, 154, 197, 298, 343, 394, 539, 686, 1043, 1078, 1379, 1639, 2086, 2167, 2758, 3278, 3773, 4334, 7301, 7546, 9653, 11473, 14602, 15169, 19306, 22946, 29353, 30338, 51107, 58706, 67571, 80311, 102214, 106183, 135142, 160622, 205471, 212366, 322883, 410942, 562177, 645766, 743281, 1124354, 1438297, 1486562, 2260181, 2876594, 4520362, 10068079, 15821267, 20136158, 31642534, 110748869, 221497738]

約数ペア:

[(1, 221497738), (2, 110748869), (7, 31642534), (11, 20136158), (14, 15821267), (22, 10068079), (49, 4520362), (77, 2876594), (98, 2260181), (149, 1486562), (154, 1438297), (197, 1124354), (298, 743281), (343, 645766), (394, 562177), (539, 410942), (686, 322883), (1043, 212366), (1078, 205471), (1379, 160622), (1639, 135142), (2086, 106183), (2167, 102214), (2758, 80311), (3278, 67571), (3773, 58706), (4334, 51107), (7301, 30338), (7546, 29353), (9653, 22946), (11473, 19306), (14602, 15169)]